Faculty Profile

Youssef M A Hashash

Civil and Environmental Engineering
Youssef M A Hashash
Youssef M A Hashash
Professor
2230C Newmark Civil Engineering Bldg
205 N. Mathews
Urbana Illinois 61801
(217) 333-6986

Administrative Titles

  • William J. and Elaine F. Hall Endowed Professor
  • John Burkitt Webb Endowed Faculty Scholar

Primary Research Area

  • Geotechnical Engineering

Education

  • Ph.D. Civil (Geotechnical) Engineering. MIT 1992
  • M.S. Civil (Geotechnical) Engineering MIT 1988
  • B.S. Civil Engineering Massachusetts Institute of Technology 1987

Biography

Professor Youssef Hashash holds a B.S. (1987), an M.S. (1988) and a Ph.D. (1992) in civil engineering from the Massachusetts Institute of Technology. He began his career with the PB/MK TEAM in Dallas on the Superconducting Super Collider Project. In 1994 he joined Parsons Brinckerhoff in San Francisco and worked on a number of underground construction projects in the U.S. and Canada including the Boston Central Artery/Tunnel project.

Professor Hashash joined the faculty of the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign in 1998. He taught courses in Geotechnical Engineering, Numerical Modeling in Geomechanics, Geotechnical Earthquake Engineering, Tunneling in Soil and Rock, and Excavation and Support Systems. His research focus includes deep excavations in urban areas, earthquake engineering, continuum and discrete element modeling and soil-structure interaction. He also works on geotechnical engineering applications of visualization, augmented reality, imaging and drone technologies in. He has published over 80 journal articles and is co-inventor on four patents. His research group developed the software program DEEPSOIL that is used worldwide for evaluation of soil response to earthquake shaking.

Professor Hashash is a Fellow of the American Society of Civil Engineers (ASCE) and has received a number of teaching, university and professional awards including the Presidential Early Career Award for Scientists and Engineers and the ASCE 2014 Peck medal.

Academic Positions

  • William J. and Elaine F. Hall Endowed Professor in Civil and Environmental Engineering,University of Illinois at Urbana-Champaign, 2014-presents
  • Professor, University of Illinois at Urbana-Champaign, Department of Civil and Environmental Engineering, August 2009-2014
  • Associate Professor, University of Illinois at Urbana-Champaign, Department of Civil and Environmental Engineering, Aug 2005 -August 2009
  • Assistant Professor, University of Illinois at Urbana-Champaign, Department of Civil and Environmental Engineering, Dec 1997-August 2004

For more information

Other Professional Employment

  • Senior Engineer, Parsons Brinckerhoff, San Francisco, California, March 1994-Dec. 1997
  • Engineer II, The PB/MK TEAM, Dallas, Texas, June 1992-March 1994

Major Consulting Activities

  • California Senate, Sacramento, Panel for review of New Eastern Span of the Bay Bridge, 2014
  • Black and Veatch, Chicago, Quarry, 2013-2014
  • Ardaman & Associates, I-20 Bridge over Mississippi, 2011
  • MRCE, NY, Landfill Reclamation, Lebanon, 2011-2012
  • Seattle Public Utilities, Water Storage Reservoir Seismic Analysis 2011-
  • Parson Brinkerhoff, CA, Seismic Review Panel, California High Speed Rail Project, 2010-
  • ARUP, NY, High Rise building Settlement Evaluation, Mexico City, 2010
  • URS, St. Louis, MO, Mississippi River Bridge 2008
  • Terracon, Atlanta, GA, Port of Anchorage Expansion 2004-2010
  • Arup, San Francisco, CA, Transbay Terminal 2004-2010

Professional Registrations

  • Civil Engineering, Lebanon, 1995-present
  • Civil Engineering, California, 1995-present

Research Statement

Dr. Hashash's research interests include deep excavations, tunneling, discrete element modeling, soil constitutive behavior, earthquake engineering, numerical modeling, and soil-structure interaction. He is also involved in the use of visualization and virtual reality techniques in geotechnical engineering applications.

Research Interests

  • Tunneling in Soil and Rock
  • Discrete Element Modeling
  • Deep Learning
  • Bio-engineering
  • Visualization in geomechanics
  • Soil-structure interaction
  • Numerical modeling in geomechanics
  • Inverse analysis
  • Deep excavations
  • Underground structures
  • Seismic Site response
  • Geotechnical Earthquake Engineering
  • Geotechnical Engineering

Books Authored or Co-Authored (Original Editions)

Books Edited or Co-Edited (Original Editions)

  • Earth Retention Conference 3 (2010), Edited by Richard J. Finno, Ph.D., P.E.; Youssef M. A. Hashash, Ph.D., P.E.; Pedro Arduino, Ph.D., P.E., Geotechnical Special Publications (GSP) 208.
  • Design and Construction of Earth Retaining Systems, American Society of Civil Engineers, Geotechnical Special Publication No. 83, 1998, Co-Editors: R.J. Finno, Y. Hashash, C. L. Ho, and B.P. Sweeney.

Selected Articles in Journals

  • Qian, Y., Boler, H. Moaveni, M., Tutumluer, E. Hashash, Y. M.A., and Ghaboussi, J. (2017). ￿Degradation Related Changes in Ballast Gradation and Aggregate Particle Morphology￿ ASCE Journal of Geotechnical and Geoenvironmental Engineering. (Accepted)
  • Grace A. Parker, Joseph A. Harmon, Jonathan P. Stewart, Youssef Y.M.A. Hashash, Albert R. Kottke, Ellen M. Rathje, Walter J. Silva, and Kenneth W. Campbell (2017) "Proxy-Based VS30 Estimation in Central and Eastern North America", Bulletin of Seismological Society of America, in press.
  • Olson, S., Hashash, Y.M.A, Muszynski, M., and Phillips, C. (2017) "Passive Wedge Formation and Lateral Loads on Large Foundations during Lateral Spreading" Journal of Geotechnical and Geoenvironmental Engineering, In Press.
  • Moon, S. W., Hashash, Y. M., & Park, D. (2017). USGS hazard map compatible depth-dependent seismic site coefficients for the Upper Mississippi Embayment. KSCE Journal of Civil Engineering, 21(1), 220-231.
  • Julie R￿ier, Luis-Fabian Bonilla, Pierre-Yves Bard, Etienne Bertrand, Fabrice Hollender, Hiroshi Kawase, Deborah Sicilia, Pedro Arduino, Angelo Amorosi, Domniki Asimaki, Daniela Boldini, Long Chen, Anna Chiaradonna, Florent DeMartin, Marco Ebrille, Ahmed Elgamal, Gaetano Falcone, Evelyne Foerster, Sebastiano Foti, Evangelia Garini, George Gazetas, Celine Gelis, Alborz Ghofrani, Amalia Giannakou, James R. Gingery, Nathalie Glinsky, Joseph Harmon, Youssef Hashash, Susumu Iai, Boris Jeremić, Steve Kramer, Stavroula Kontoe, Jozef Kristek, Giuseppe Lanzo, Annamaria di Lernia, Fernando Lopez-Caballero, Marianne Marot, Graeme McAllister, E. Diego Mercerat, Peter Moczo, Silvana Montoya-Noguera, Michael Musgrove, Alex Nieto-Ferro, Alessandro Pagliaroli, Federico Pisano, Aneta Richterova, Suwal Sajana, Maria Paola Santisi d'Avila, Jian Shi, Francesco Silvestri, Mahdi Taiebat, Giuseppe Tropeano, Luca Verrucci, and Kohei Watanabe (2016). International Benchmark on Numerical Simulations for 1D, Nonlinear Site Response (PRENOLIN): Verification Phase Based on Canonical Cases. Bulletin of the Seismological Society of America, 106(5),2016, 2112-2135.
  • Fleming, K. L., Hashash, Y. M., McLandrich, S., O￿Riordan, N., & Riemer, M. (2016). Novel Technologies for Deep-Excavation Digital Construction Records. Practice Periodical on Structural Design and Construction, 21(4), 05016002.
  • Muszynski, M. R., Olson, S. M., Hashash, Y. M. A., & Phillips, C. (2016). Earth Pressure Measurements Using Tactile Pressure Sensors in a Saturated Sand During Static and Dynamic Centrifuge Testing.
  • Dashti, S., Hashash, Y. M. A., Gillis, K., Musgrove, M., & Walker, M. (2016). Development of dynamic centrifuge models of underground structures near tall buildings. Soil Dynamics and Earthquake Engineering, 86, 89-105.
  • Groholski, D. R., Hashash, Y. M., Kim, B., Musgrove, M., Harmon, J., & Stewart, J. P. (2016). Simplified model for small-strain nonlinearity and strength in 1D seismic site response analysis. Journal of Geotechnical and Geoenvironmental Engineering, 142(9), 04016042.
  • Ibrahim, Hatem, Khaled El-Rayes, and Youssef Hashash. (2016) "Optimizing the Construction and Use of Shared Wheat Storage Facilities." Transactions of the ASABE. 59(1): 371-382. (doi: 10.13031/trans.59.11275)
  • Byungmin Kim, Youssef M. A. Hashash, Jonathan P. Stewart, Ellen M. Rathje, Joseph A. Harmon, Michael I. Musgrove, Kenneth W. Campbell, and Walter J. Silva (2016) Relative Differences between Nonlinear and Equivalent-Linear 1D Site Response Analyses. Earthquake Spectra In-Press, doi: http://dx.doi.org/10.1193/051215EQS068M
  • Cording, E. J., Y. M. A. Hashash, and J. Oh. "Analysis of pillar stability of mined gas storage caverns in shale formations." Engineering Geology 184 (2015): 71-80.
  • Moss, Robb Eric S., Eric M. Thompson, D. Scott Kieffer, Binod Tiwari, Youssef M. A. Hashash, Indra Acharya, Basanta Adhikari, Domniki Asimaki, Kevin B. Clahan, Brian D. Collins, Sachindra Dahal, Randall W. Jibson, Diwakar Khadka, Amy Macdonald, Chris L. M. Madugo, H. Benjamin Mason, Menzer Pehlivan, Deepak Rayamajhi, and Sital Uprety (2015). ￿Geotechnical Effects of the 2015 Magnitude 7.8 Gorkha, Nepal, Earthquake and Aftershocks.￿ Seismological Research Letters, 86(6).
  • Hashash, Y. M., Dashti, S., Romero, M. I., Ghayoomi, M., & Musgrove, M. (2015). Evaluation of 1-D seismic site response modeling of sand using centrifuge experiments. Soil Dynamics and Earthquake Engineering, 78, 19-31.
  • Qian, Y., Tutumluer, E., Hashash, Y. M., Ghaboussi, J., & Davis, D. D. (2015). Ballast Settlement Ramp to Mitigate Differential Settlement in a Bridge Transition Zone. Transportation Research Record: Journal of the Transportation Research Board, (2476), 45-52.
  • Gillis, K., Dashti, S., and Hashash, Y. M., "Dynamic Calibration of Tactile Sensors for Measurement of Soil Pressures in Centrifuge," Geotechnical Testing Journal, Vol. 38, No. 3, 2015, pp. 261￿274, http://dx.doi.org/10.1520/GTJ20140184. ISSN 0149￿61150149￿6115
  • Ibrahim, H., El-Rayes, K., and Hashash, Y. (2015) "Optimizing the Storage and Transportation of Wheat in Developing Countries," Journal of Applied Engineering in Agriculture, American Society of Agricultural and Biological Engineers. 31(4): 669-678. (doi: 10.13031/aea.31.10933)
  • Byungmin Kim, Youssef M. A. Hashash, Ellen M. Rathje, Jonathan P. Stewart, Sidao Ni, Paul G. Somerville, Albert R. Kottke, Walter J. Silva, and Kenneth W. Campbell (2016) Subsurface Shear Wave Velocity Characterization Using P-Wave Seismograms in Central and Eastern North America. Earthquake Spectra: February 2016, Vol. 32, No. 1, pp. 143-169. doi: http://dx.doi.org/10.1193/123013EQS299M
  • Moon, S. and Hashash, Y. (2015). "From Direct Simple Shear Test to Soil Model Development and Supported Excavation Simulation: Integrated Computational-Experimental Soil Behavior Characterization Framework." J. Geotech. Geoenviron. Eng., 10.1061/(ASCE)GT.1943-5606.0001351, 04015050.
  • Lee, S. J., and Hashash, Y. M. A. (2015) iDEM: An impulse-based discrete element method for fast granular dynamics. Int. J. Numer. Meth. Engng, 104: 79￿103. doi: 10.1002/nme.4923.
  • Hashash, Y. M. A., N. A. Abrahamson, S. M. Olson, S. Hague and B. Kim (2015). "Conditional Mean Spectra in Site-Specific Seismic Hazard Evaluation for a Major River Crossing in the Central United States." Earthquake Spectra 31(1): 47-69.
  • Hashash, Y. A. and M. Romero-Arduz (2014). Seismic Design of Tunnels. Encyclopedia of Earthquake Engineering. M. Beer, I. A. Kougioumtzoglou, E. Patelli and I. S.-K. Au, Springer Berlin Heidelberg: 1-29.
  • Muszynski, M. R., S. M. Olson, Y. Hashash and C. Phillips (2014). "Repeatability of Centrifuge Tests Containing a Large, Rigid Foundation Subjected to Lateral Spreading." GEOTECHNICAL TESTING JOURNAL 37(6).
  • Qian, Y., Boler, H. Moaveni, M., Tutumluer, E. Hashash, Y. M.A, and Ghaboussi, J. (2014). ￿Characterizing Ballast Degradation through Los Angeles Abrasion Test and Image Analysis￿ Transportation Research Record: Journal of the Transportation Research Board, Transportation Research Board of the National Academies, Washington, D.C. No. 2448, pp. 142-151.
  • Song, H. and Y. M. A. Hashash (2014). "Characterization of stress￿strain behaviour of red blood cells (RBCs), part II: response of malaria-infected RBCs." Inverse Problems in Science and Engineering 23(3): 413-424.
  • Song, H. and Y. M. A. Hashash (2014). "Characterization of stress￿strain behaviour of red blood cells (RBCs), part I: methodology development and application to healthy RBCs." Inverse Problems in Science and Engineering 23(6): 913-931.
  • Groholski, D. R., Y. M. A. Hashash and N. Matasovic (2014). "Learning of pore pressure response and dynamic soil behavior from downhole array measurements." Soil Dynamics and Earthquake Engineering 61￿62(0): 40-56.
  • Hashash, Y. M. A., et al. (2014). "Reference Rock Site Condition for Central and Eastern North America." Bulletin of the seismological society of America 104(2): 684-701.
  • Tutumluer, E., Qian, Y., Hashash, Y. M.A., Ghaboussi, J., and Davis, D. (2013). ￿Discrete Element Modeling of Ballasted Track Deformation Behavior￿ International Journal of Rail Transportation, 1:1-2, pp. 57-73.
  • Hashash, Y. M. A., B. Kim, S. M. Olson and S. Moon (2013). "GEOTECHNICAL ISSUES AND SITE RESPONSE IN THE CENTRAL U.S." SEISMIC HAZARD DESIGN ISSUES IN THE CENTRAL UNITED STATES AN ASCE SYMPOSIUM, April 10, 2012 Mongraph(in press).
  • Groholski, D. R. and Y. M. A. Hashash (2013). "Development of an inverse analysis framework for extracting dynamic soil behavior and pore pressure response from downhole array measurements." International Journal for Numerical and Analytical Methods in Geomechanics 37(12): 1867-1890.
  • Kim, B. and Y. M. A. Hashash (2013). "Site Response Analysis Using Downhole Array Recordings during the March 2011 Tohoku-Oki Earthquake and the Effect of Long-Duration Ground Motions." Earthquake spectra 29(S1): S37-S54.
  • Qian, Y., Lee, S.J., Tutumluer, E., Hashash, Y. M.A., Mishra, D., and Ghaboussi, J. (2013). ￿Discrete Element Method for Simulating Ballast Shear Strength from Large Scale Triaxial Tests￿ Transportation Research Record: Journal of the Transportation Research Board, Transportation Research Board of the National Academies, Washington, D.C. No. 2374, pp. 126-135.
  • Phillips, C., A. R. Kottke, Y. M. A. Hashash and E. M. Rathje (2012). "Significance of ground motion time step in one dimensional site response analysis." Soil Dynamics and Earthquake Engineering 43(0): 202-217.
  • Phillips, C., Y. M. A. Hashash, S. M. Olson and M. R. Muszynski (2012). "Significance of small strain damping and dilation parameters in numerical modeling of free-field lateral spreading centrifuge tests." Soil Dynamics and Earthquake Engineering 42(0): 161-176.
  • Lee, S. J., Y. M. A. Hashash and E. G. Nezami (2012). "SIMULATION OF TRIAXIAL COMPRESSION TESTS WITH POLYHEDRAL DISCRETE ELEMENTS." Computers and Geotechnics, Volume 43, June 2012, Pages 92￿100
  • Hashash, Y. M. A., B. Kim, S. M. Olson and I. Ahmad (2012). "Seismic Hazard Analysis Using Discrete Faults in Northwestern Pakistan: Part II ￿ Results of Seismic Hazard Analysis." Journal of Earthquake Engineering 16(8): 1161-1183.
  • Hashash, Y. M. A., B. Kim, S. M. Olson and I. Ahmad (2012). "Seismic Hazard Analysis Using Discrete Faults in Northwestern Pakistan: Part I ￿ Methodology and Evaluation." Journal of Earthquake Engineering 16(7): 963-994.
  • Ramon Verdugo, Nicholas Sitar, J. David Frost, Jonathan D. Bray, Gabriel Candia, Terry Eldridge, Youssef Hashash, Scott M. Olson, and Alfredo Urzua (2012) Seismic Performance of Earth Structures during the February 2010 Maule, Chile, Earthquake: Dams, Levees, Tailings Dams, and Retaining Walls. Earthquake Spectra: June 2012, Vol. 28, No. S1, pp. S75-S96.
  • Christian Ledezma, Tara Hutchinson, Scott A. Ashford, Robb Moss, Pedro Arduino, Jonathan D. Bray, Scott Olson, Youssef M.A. Hashash, Ram￿erdugo, David Frost, Robert Kayen, and Kyle Rollins (2012) Effects of Ground Failure on Bridges, Roads, and Railroads. Earthquake Spectra: June 2012, Vol. 28, No. S1, pp. S119-S143.
  • Elnashai, A. S., B. Gencturk, O.-S. Kwon, Y. M. A. Hashash, S. J. Kim, S.-H. Jeong and J. Dukes (2012). "The Maule (Chile) earthquake of February 27, 2010: Development of hazard, site specific ground motions and back-analysis of structures." Soil Dynamics and Earthquake Engineering 42(0): 229-245.
  • Hashash, Y. M. A., A. Mwafy, A. S. Elnashai and J. F. Hajjar (2012). "Development of a Multi-Disciplinary Graduate Course on Consequence-Based Earthquake Risk Management." Jounral of Continuing Engineering Education and Lif-Long Learning 11(1/2): 127-147.
  • Jonathan Bray, Kyle Rollins, Tara Hutchinson, Ramon Verdugo, Christian Ledezma, George Mylonakis, Dominic Assimaki, Gonzalo Montalva, Pedro Arduino, Scott M. Olson, Robert Kayen, Youssef M.A. Hashash, and Gabriel Candia (2012) Effects of Ground Failure on Buildings, Ports, and Industrial Facilities. Earthquake Spectra: June 2012, Vol. 28, No. S1, pp. S97-S118
  • Ahmad, I., Y. Hashash, A. N. Khan and M. Waseem (2011). "Site Amplification Factor at Mardan." Journal of Himalayan Earth Sciences 44(2): 61-70.
  • Mwafy, A. M., O.-S. Kwon, A. Elnashai and Y. M. A. Hashash (2011). "Wave Passage and Ground Motion Incoherency Effects on Seismic Response of an Extended Bridge." Journal of Bridge Engineering 16(3): 364-374.
  • Hashash, Y. M. A., Song, H., and Osouli, A. (2011) "Three-dimensional inverse analyses of a deep excavation in Chicago clay," International Journal for Numerical and Analytical Methods in Geomechanics, Volume 35, Issue 9, pages 1059￿1075, 25 June 2011
  • Osouli, A., and Hashash, Y. M. A. (2010) "Case studies of prediction of excavation response using learned performance of excavations," International Journal of Geoengineering Case Histories, Vol. 1, Issue 4.
  • Tsai, C.-C., and Hashash, Y. M. A. (2010) "Evaluation of Two Approaches to Simulate Spatially Variable Ground Motions," Journal of Earthquake Engineering, Vol. 14, No. 2, pp pp. 293 - 308.
  • Osouli, A., and Hashash, Y. M. A. (2010) "The interplay between field measurements and soil behavior for capturing supported excavation response," Journal of geotechincal and geoenvironmental engineering, Vol. 136, No. 1, pp 69-84.
  • Hashash, Y. M. A., Levasseur, S., Osouli, A., Finno, R., and Malecot, Y. (2010) "Comparison of two inverse analysis techniques for learning deep excavation response," Computer and Geotechnics, Vol. 37, No. 3, pp 323-333.
  • Yen, W. Phillip, Chen, Genda, Yashinski, Mark, Hashash, Youssef, Holub, Curtis, Wang, Kehai, Guo, Xiaodong (2009) "Lessons in bridge damage learned from the Wenchuan earthquake" Earthquake Engineering and Engineering Vibration, Volume: 8, Issue: 2, Pages: 275-285
  • Kwon, T.-H., Ghaboussi, J., Pecknold, D. A., and Hashash, Y. M. A. (2009) "Role of Cornea Biomechanical Properties in Applanation Tonometry Measurements," Journal of Refractive Surgery, Vol. 2, pp 1-8.
  • Ghaboussi, J., Kwon, T.-H., Pecknold, D. A., and Hashash, Y. M. A. (2009) "Accurate intraocular pressure measurement using genetic algorithm and neural networks," Journal of Biomechanics, Vol. 42, No. 14, pp 2301-2306.
  • Schuster, M., Kung, G. T.-C., Juang, C. H., and Hashash, Y. M. A. (2009) "Simplified Model for Evaluating Damage Potential of Buildings Adjacent to a Braced Excavation in Clay," ASCE Journal of Geotechnical and Geoenvironmental Engineering, Vol. 135, No. 12, pp 1823-1835.
  • Phillips, C., and Hashash, Y. M. A. (2009) "Damping formulation for non-linear 1D site response analyses," Soil Dynamics and Earthquake Engineering, Vol. 29, No. 7, pp Pages 1143-1158.
  • Hashash, Youssef M.A., Qingwei Fu, Jamshid Ghaboussi, Poul V. Lade, and Christopher Saucier (2009) "Inverse analysis based interpretation of sand behavior from triaxial shear tests subjected to full end restraint," Canadian Geotechnical Journal, Vol. 46, No. 7, pp pp. 768-791..
  • Tsai, C.-C., and Hashash, Y. M. A. (2009) "Learning of dynamic soil behavior from downhole arrays," Journal of geotechincal and geoenvironmental engineering, Vol. 135, No. 6, pp 745-757.
  • Sedarat, H., Kozak, A., Hashash, Y. M. A., Shamsabadi, A., and Krimotat, A. (2009) "Contact interface in seismic analysis of circular tunnels," Tunneling and Underground Space Technology, Vol. 24, pp 482-490.
  • Hashash, Youssef M. A., Hwayeon Song, Sungmoon Jung, and Jamshid Ghaboussi (2009) "Extracting inelastic metal behavior through Inverse Analysis: A shift in focus from material models to material behavior," Inverse Problems in Science & Engineering, Vol. 17 No. 1, pp 35-50.
  • Hashash, Y. M. A., and Song, H. (2008). "The integration of numerical modeling and physical measurements through inverse analysis in geotechnical engineering." Korean Journal of Civil Engineering, 12(3), 165-176.
  • Kwon, T.-H., J. Ghaboussi, D. A. Pecknold, and Y. M.A. Hashash (2008) "Effect of cornea material stiffness on measured intraocular pressure," Journal of Biomechanics, Vol. 41, pp pp.1707-1713.
  • Hashash, Y. M.A., A. Osouli, and C. Marulanda (2008) "Central Artery/ Tunnel Project Excavation Induced ground deformations," ASCE Journal of Geotechnical and Geoenvironmental Engineering, Vol. 134, No. 9, pp 1399-1406..
  • Hashash, Y. M.A., Chi-Chin Tsai, C. Phillips, and D. Park (2008) "Soil column depth dependent seismic site coefficients and hazard maps for the Upper Mississippi Embayment," Bull. Seism. Soc. Am., Vol. 98, No. 4, pp 2004-2021.
  • Kwok, A. O. L., Stewart, J. P. & Hashash, Y. M. A. (2008). "Nonlinear ground response analysis of Turkey Flat shallow stiff soil site to strong ground motion." Bulletin of Seismological Society of America, 98(1), pp. 331-343.
  • Qui￿s-Rozo, C. A., Hashash, Y. M. A. & Liu, L. Y. (2008). "Digital Image Reasoning for Tracking Excavation Activities." Automation in Construction, 17(5), 608-622.
  • Park, D., and Y. M.A. Hashash (2008) "Rate-dependent soil behavior in seismic site response analysis.," Canadian Geotechnical Journal, Vol. 45, No. 4, pp 454-446.
  • Hashash, Y. M. A. and R. J. Finno (2008). "Development of new integrated tools for predicting, monitoring and controlling ground movement due to excavations." ASCE Practice Periodical on Structural Design and Construction Volume 13(Issue 1): pp. 4-10.
  • Tsai, C.-C. and Y. M. A. Hashash (2008). "A novel framework integrating downhole array data and site response analysis to extract dynamic soil behavior." Soil Dynamics and Earthquake Engineering Volume 28(Issue 3): pp 181-197.
  • Kwok, A. O. L., Stewart, J. P., Hashash, Y. M. A., Matasovic, N., Pyke, R., Wang, Z. & Yang, Z. (2007). "Use of exact solutions of wave propagation problems to guide implementation of nonlinear, time-domain ground response analysis routines." ASCE Journal of Geotechnical and Geoenvironmental Engineering 133(11), pp. 1337-1481.
  • Hashash, Y. M. A. (2007). "Special issue on biologically inspired and other novel computing techniques in geomechanics, Editorial." Computers and Geotechnics, 34(5), p. 329.
  • Fu, Q., Hashash, Y. M. A., Jung, S., and Ghaboussi, J. (2007). "Integration of laboratory testing and constitutive modeling of soils." Computer and Geotechnics, 34(5), pp. 330-345.
  • Kung, G. T. C., Juang, C. H., Hsiao, E. C. L., and Hashash, Y. M. A. (2007). "A simplified model for wall deflection and ground surface settlement caused by braced excavation in clays." ASCE Geotechnical Engineering Journal, 133(6), pp. 1-17.
  • Erfan G. Nezami, D. Z., Youssef M. A. Hashash, Jamshid Ghaboussi,. (2007). "Simulation of bucket-soil interaction using discrete element method." Journal of Numerical and Analytical Methods in Geomechanics, 31(9), pp. 1147 - 1162..
  • Butkovich, J. N. & Hashash, Y. M. A. (2007). "Neural Network Material Model Enhancement: Optimization Through Selective Data Removal." Artificial Intelligence for Engineering Design, Analysis and Manufacturing 21: pp. 61-72.
  • Su, Y. Y., Hashash, Y. M. A. & Liu, L. Y. (2006). "Integration of construction as-built data with geotechnical monitoring of urban excavation." Journal of Construction Engineering and Management 132(12): pp. 1234-1241.
  • Zhao, D., Nezami, E. G., Hashash, Y. M. A. & Ghaboussi, J. (2006). "Three-dimensional discrete element simulation for granular materials." Engineering Computations 23(7): pp. 749-770.
  • Park, D. & Hashash, Y. M. A. (2006). "Effect of Loading Frequency Dependent Soil Behavior on Seismic Site Effects." Journal of the Korean Geotechnical Society 22(3): 23-35.
  • Hashash, Y. M. A., Marulanda, C., Ghaboussi, J. & Jung, S. (2006). "Noval approach to integration of numerical modeling and field observations for deep excavations." Journal of Geotechnical and Geoenvironmental Engineering 132(8): 1019 - 1031.
  • J. Ghaboussi, G. J. Yun, Y. M. A. Hashash,. (2006). "A novel predictor-corrector algorithm for sub-structure pseudo-dynamic testing." Earthquake Engineering & Structural Dynamics, 35(4), 453-476.
  • Nezami, E. G., Hashash, Y. M. A., Zhao, D. & Ghaboussi, J. (2006). "Shortest link method for contact detection in discrete element method." International Journal for Numerical and Analytical Methods in Geomechanics 30(8): 783 - 801.
  • Donald C. Wotring, Y. M. A. H. (2006). "Visualization of material stiffness in geomechanics analysis." International Journal for Numerical and Analytical Methods in Geomechanics, 30(1), 21-44.
  • Hashash, Y. M. A., Park, D., and Yao, J. I.-C. (2005). "Ovaling deformations of circular tunnels under seismic loading, an update on seismic design and analysis of underground structures." Tunneling and Underground Space Technology, 20(5), 435-441. #4 in Top 25 download list for the Journal, Fall 2005
  • Park, D. and Y.M.A. Hashash, Estimation of seismic factors in the Mississippi Embayment: II. Probabilistic seismic hazard with nonlinear site effects. Soil Dynamics and Earthquake Engineering, 2005. 25: p. pp. 145-156.
  • Park, D. and Y.M.A. Hashash, Estimation of seismic factors in the Mississippi Embayment: I. Estimation of dynamic properties. Soil Dynamics and Earthquake Engineering, 2005. 25: p. pp. 133-144.
  • Hashash, Y.M., Q. Fu, and J. Butkovich, Generalized Strain Probing of Constitutive Models. International Journal of Numerical and Analytical Methods in Geomechanics, 2004. 28: p. 1503-1519.
  • Nezami, E., Y.M.A. Hashash, D. Zhao, and J. Ghaboussi, A fast contact detection algorithm for 3-D discrete element method. Computers and Geotechnics, 2004. 31: p. 575-587.
  • Hashash, Y. M. A., S. Jung and J. Ghaboussi (2004). "Numerical implementation of a neural network based material model in finite element analysis." International Journal for Numerical Methods in Engineering 59: 989-1005.
  • Park, D. and Y. M. A. Hashash (2004). "Soil damping formulation in nonlinear time domain site response analysis." Journal of Earthquake Engineering 8(2): 249-274
  • Hashash, Y.M.A., C. Marulanda, K. Kershaw, C. E., D. Druss, D. Bobrow, and P. Das, Temperature correction and strut loads in deep excavations for the Central Artery Project. Journal of Geotechnical and Geoenvironmental Engineering, 2003. 129(6): pp. 495-505.
  • Hashash, Y.M.A., C. Marulanda, J. Ghaboussi, and S. Jung, Systematic update of a deep excavation model using field performance data. Computers and Geotechnics, 2003. 30: 477-488.
  • Hashash, Y.M.A., J.I.-C. Yao, and D. Wotring, Glyph and hypersteamline representation of stress and strain tensors and material constitutive response. International Journal for Numerical and Analytical Methods in Geomechanics, 2003. 27: pp.603-626.
  • Hashash, Y.M.A., D. Wotring, J.I.-C. Yao, J.-S. Lee, and Q. Fu, Visual Framework for Development and use of Constitutive Models. International Journal for Numerical and Analytical Methods in Geomechanics, 2002. 26: 1493-1513.
  • Hashash, Y.M.A., E.J. Cording, and J.-M. Oh, Analysis of major shearing of a rock ridge. International Journal of Rock Mechanics and Mining Sciences, 2002. 39: p. 945-957.
  • Hashash, Y.M.A. and D. Park, Viscous damping formulation and high frequency motion propagation in nonlinear site response analysis. Soil Dynamics and Earthquake Engineering, 2002. 22(7): pp. 611-624.
  • Hashash, Y.M.A. and A.J. Whittle, Mechanisms of Load Transfer and Arching for Braced Excavations in Clay. Journal of Geotechnical and Geoenvironmental Engineering, 2002. 128(3): p. 187-197.
  • Hashash, Y.M.A., J.J. Hook, B. Schmidt, and J.I.-C. Yao, Seismic design and analysis of underground structure. Tunneling and Underground Space Technology, 2001. 16: p. 247-293. #7 in Top 25 download list for the Journal, Fall 2005
  • Hashash, Y.M.A. and D. Park, Non-linear one-dimensional seismic ground motion propagation in the Mississippi embayment. Engineering Geology, 2001. 62(1-3): p. 185-206
  • Hashash, Y.M.A, and Whittle, A.J., "Ground Movement Prediction for Deep Excavations in Soft Clay," ASCE Journal of Geotechnical Engineering, Vol. 122, No. 6, pp. 474-486, June 1996.
  • Whittle, A.J., Hashash, Y.M.A, and Whitman, R.V., "Analysis of a Deep Excavation in Boston," ASCE Journal of Geotechnical Engineering, Vol. 119, No. 1, pp. 69-90, 1993.
  • Hashash, Y.M.A., and Whittle, A.J., "Integration of the Modified Cam-Clay Model in Non-Linear Finite Element Analysis," Computers and Geotechnics, 14(2), pp. 59-83, 1992.

Articles in Conference Proceedings

  • Numanoglu, O. A., Hashash, Y.M.A., Cerna-Diaz, A., Olson, S. M., Bhaumik, L., Rutherford, C.J.R., & Weaver, T. (in press). ￿Nonlinear 3-D modeling of dense sand and simulation of soil-structure system under multi-directional loading￿. Proceedings of GeoFrontiers 2017, Orlando, Florida.
  • Cerna-Diaz, A., Olson, S. M., Numanoglu, O. A., Hashash, Y.M.A., Bhaumik, L., Rutherford, C.J.R., & Weaver, T. (in press).￿Free-field cyclic response of dense sands in dynamic centrifuge tests with 1D and 2D shakings￿. Proceedings of GeoFrontiers 2017, Orlando, Florida.
  • Bhaumik, L., Rutherford, C.J.R., Cerna-Diaz, A., Olson, S. M., Numanoglu, O. A., Hashash, Y.M.A., & Weaver, T. (in press).￿Volumetric strain in non-plastic silty sand subjected to multidirectional cyclic loading￿. Proceedings of GeoFrontiers 2017, Orlando, Florida.
  • Qian, Y., Mishra, D., Tutumluer, E., Hashash, Y. M.A., and Ghaboussi, J. (2016). ￿Moisture Effects on Degraded Ballast Shear Strength Behavior￿ Proceedings of the 2016 Joint Rail Conference, April 12-15, 2016, Columbia, SC.
  • Parker, G., J. P. Stewart, Y. M. A. Hashash, E. M. Rathje, K. Campbell, W. J. Silva, J. A. Harmon and B. Xu (2016). Empirical seismic site amplification in central and eastern North America from NGA-East ground motion database. Annual Meeting of the Seismological Society of America, Reno, NV. (Abstract and Presentation)
  • Parker, G., J. P. Stewart, J. A. Harmon, Y. M. A. Hashash, G. A. Atkinson, D. Boore, Y. Bozorgnia, R. B. Darragh and W. J. Silva (2017b). Recommended Central and Eastern North America Seismic Site Amplification Models for USGS Map Applications. Annual Meeting of the Seismological Society of America, Denver, CO. (Abstract and Presentation)
  • Kishida, T., C. A. Goulet, T. D. Ancheta, C. H. Cramer, R. B. Darragh, W. J. Silva, Y. M. A. Hashash, J. A. Harmon, J. P. Stewart, K. E. Wooddell, R. R. Youngs and S. Mazzoni (2016b). NGA-East Database. Annual Meeting of the Seismological Society of America, Reno, NV. (Abstract and Presentation)
  • Kishida, T., C. A. Goulet, T. D. Ancheta, C. H. Cramer, R. B. Darragh, W. J. Silva, Y. M. A. Hashash, J. A. Harmon, J. P. Stewart, K. E. Wooddell and R. R. Youngs (2015). PEER NGA-East Database. AGU 2015, Montreal, CA. (Abstract and Presentation)
  • Kishida, T., C. A. Goulet, T. D. Ancheta, C. H. Cramer, R. B. Darragh, Y. M. A. Hashash, J. A. Harmon, J. P. Stewart, K. E. Wooddell, R. R. Youngs and S. Mazzoni (2016a). NGA-East Database. Joint Meeting of the Eastern Section of SSA & NGA-East 2016, Reston, Virginia. (Abstract and presentation)
  • Seismic performance evaluation of nonlinear soil-structure system under multi-directional shaking. Geotechnical&Structural Engineering Congress 2016, Phoenix, Arizona (Abstract and Presentation only)
  • Harmon, J. A., Y. M. A. Hashash, J. P. Stewart, E. M. Rathje, K. Campbell, W. J. Silva, G. Parker and B. Xu (2016). A Simulation-Based Ground Response Model to Guide Development of a Generalized Site Amplification Model for Central and Eastern North America Annual Meeting of the Seismological Society of America, Reno, NV. (Abstract and Presentation)
  • Robert Mitchell, P.E., Shannon & Wilson, Inc.; Norman Abrahamson, Ph.D. Pacific Gas and Electric Company; Donald Anderson, Ph.D., P.E., CH2M HILL; Youssef Hashash, Ph.D., P.E., University of Illinois; Steven Kramer, Ph.D., P.E., University of Washington (2016) "Ground Motion Development for Evaluation and Retrofit of Major Underground Water Reservoirs in Seattle, Washington (1699) 2016 Geocongress, Phoneix, Arizona (Abstract and presentation)
  • Phoebe Cheng, P.E., SC Solutions; Shah Vahdani, Ph.D., P.E., Applied GeoDynamics; Payman Teharani, Ph.D., P.E., SC Solutions; Michele McHenry, P.E., CH2M HILL; Youssef Hashash, Ph.D., University of Illinois, Urbana-Champaign; Steve Kramer, Ph.D., University of Washington; Lee Marsh, Ph.D., P.E., BergerABAM (2016) "Advanced Soil-Fluid-Structure-Interaction Analysis of Large Buried Reservoir for Seismic Retrofit Design (1697)" 2016 Geocongress, Phoneix, Arizona (Abstract and presentation)
  • Youssef Hashash, Mohamad Jammoul, Kaitlyn Fleming, Omar Baltaji, Stephen McLandrich, Andrew Yeskoo, Nick O'Riordan,Michael Riemer(2016) "Excavation Support System Response for the Transbay Transit Center in San Francisco, California (1007)", 2016 Geocongress, Phoneix, Arizona (Abstract and presentation)
  • Hashash, Y.M.A. and Mason, B. (2016) POST-EARTHQUAKE RECONNAISSANCE FINDINGS FROM THE M7.8 GORKHA EARTHQUAKE - NEPAL, 2016 Geocongress, Phoneix, Arizona (Abstract and presentation)
  • M. Pehlivan, Y. Hashash, J. A. Harmon E. M. Rathje, J. P. Stewart, W. J. Silva K. W. Campbell, S. Nikolaou 8 (2015) "Influence of Shear Wave Velocity Reversals on One-Dimensional Site Response of Spatially Varied Profiles " 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand, 1-4 November 2015
  • S. M. Olson, Y. M.A. Hashash, C. J. Rutherford, A. Cerna-Diaz, O. A. Numanoglu, L.Bhaumik, and T. Weaver "Experimental and Numerical Investigation of Cyclic Response of Dense Sand under Multidirectional Shaking" 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand, 1-4 November 2015
  • David R. Groholski, Youssef M.A. Hashash, Michael Musgrove, Joseph Harmon, Byungmin Kim, " Evaluation of 1-D Non-linear Site Response Analysis using a General Quadratic/Hyperbolic Strength-Controlled Constitutive Model" 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand, 1-4 November 2015
  • Gillis, K., Dashti, S., Hashash, Y., Jones, C., Musgrove, M., & Walker, M. (2015). Seismic Performance of Shallow Underground Structures Adjacent to Tall Buildings: A Centrifuge Experimental Study. 6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand, 1-4 November 2015
  • Stewart, J,P., K. Afshari and Hashash, Y. M. A." Protocols for Ground Response Analyses to Estimate Site Effects in Probabilistic Ground Motion Evaluations", IZIIS-50 International Conference on Earthquake Engineering and Seismology, 2015
  • Qian, Y., Tutumluer, E., Hashash, Y. M.A., and Ghaboussi, J. (2015). ￿Effects of Ballast Degradation on Shear Strength Behavior from Large-scale Triaxial Tests￿ Proceedings of the XV Pan-American Conference on Soil Mechanics and Geotechnical Engineering, November 15-18, 2015, Buenos Aires, Argentina.
  • Harmon, J. A., Y. M. A. Hashash, S. Nikolaou, M. Pehlivan, J. P. Stewart, E. M. Rathje, K. Campbell and W. J. Silva (2015). The Influence of Hard Rock Depth on Nonlinear Site Response Analysis in the Eastern United States. Annual Meeting of the Seismological Society of America, Pasadena, CA. (Abstract and Presentation)
  • Ibrahim, H., El-Rayes, K., and Hashash Y. (2015) "Optimizing Cooperative Construction of Shared Wheat Storage Facilities," The First International Congress on Post-harvest Loss Prevention, Rome, Italy, October 4-7.
  • Seung Jae Lee, Youssef M.A. Hashash, and Eun Hyun Park, (2015) "Large scale simulation of granular materials via impulse-based discrete element method" GeoCongress, ASCE, San Antonio, TX,
  • Youssef M. A. Hashash, Mohamad Jammoul, Kaitlyn L Fleming, Stephen McLandrich, Andrew Yeskoo, Nick O￿Riordan, Pierre Gouvin and Michael Riemer (2015)"Construction Monitoring for the Transbay Transit Center Excavation in San Francisco, California" GeoCongress, ASCE, San Antonio, TX,
  • SISSY NIKOLAOU, JOEL L. VOLTERRA, YOUSSEF HASHASH, DOMNIKI ASIMAKI, DIMITRIOS ZEKKOS, (2015) Rapid Geotechnical Reconnaissance Technologies for Multi Hazards, Infrastructure Group Seminar, NYC Met Section, ASCE.
  • Qian, Y., Tutumluer, E., Hashash, Y. M.A., and Ghaboussi, J. (2014). ￿Effects of Ballast Degradation on Permanent Deformation Behavior from Large-scale Triaxial Tests￿ Proceedings of the 2014 Joint Rail Conference, April 2-4, 2014, Colorado Springs, CO.
  • Magsino, S. L., P. H. Gilbert, S. T. Ariaratnam, N. R. Connery, G. English, C. W. Felice, Y. M. A. Hashash, C. T. Hendrickson, P. P. Nelson, R. L. Sterling, G. J.Tamaro, F. Tonon and S. Spence (2014). Underground Engineering for Sustainable Urban Development. Geo-Congress, Geo-Characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234 ￿ ASCE 2014.
  • Hashash, Y. M. A., S. Nikolaou, B. Sukumaran, A. Sacks, M. Burlingame, C. Baxter, A. Bradshaw, L. Wooten, H. Lacy, C. Moss, J. Daraio and T. D. O￿Rourke (2014). Selected Effects of the 2012 Hurricane Sandy along the US East Coast - A Geotechnical Perspective. Geo-Congress, Geo-Characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 235 ￿ ASCE 2014 28.
  • K . M . Gillis , S . Dashti , Y . M . A . Hashash and M . I . Romero . Arduz (2014) Seismic response of a cut-and-cover underground structure in dry sand" Proceedings of the 8th International Conference on Physical Modelling in Geotechnics 2014 (ICPMG2014), Perth, Australia, 14-17 January 2014
  • Hashash, Y. M. A., M. Jammoul, S.-H. Su and S. D. Bhat (2014). Integrating Geotechnical Baseline Reports and Risk Allocation Framework in Geotechnical Engineering Education Geo-Congress, Geo-Characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234 ￿ ASCE 2014.
  • Gillis, K., S. Dashti, Y. M. A. Hashash, M.-I. R. Arduz and M. Walker (2014). Dynamic Centrifuge Testing of a Temporary Braced Excavation in Dry Sand. Geo-Congress, Geo-Characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234 ￿ ASCE 2014.
  • Asmar, R. and Y. M. A. Hashash (2014). Modified Triaxial Apparatus for Non-Uniform Loading Beyond Frictional Ends. Geo-Congress, Geo-Characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234 ￿ ASCE 2014.
  • Hashash, Y. M. A., R. Asmar and S. Moon (2013). Combined computational-experimental Laboratory Testing for Soil Behavior Modeling. Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering. Paris, France.
  • Hashash, Y., A. Kottke, K. Campbell, B. Kim, C. Moss, S. Nikolaou, E. M. Rathje, W. J. Silva and J. P. Stewart (2013). Reference Rock Site Condition for Central and Eastern North America. 22nd Conference on Structural Mechanics in Reactor Technology. San Francisco, California, USA.
  • Kim, B., Y. Hashash, A. Kottke, D. Assimaki, W. Li, E. M. Rathje, K. Campbell, W. J. Silva and J. P. Stewart (2013). A Predictive Model for the Relative Differences between Nonlinear and Equivalent-Linear Site Response Analyses. 22nd Conference on Structural Mechanics in Reactor Technology. San Francisco, California, USA.
  • McLandrich, S. M., Y. M. A. Hashash and N. J. O'Riordan (2013). Networked Geotechnical near Real-Time Monitoring for Large Urban Excavation using Multiple Wireless Sensors. CONFERENCE TO COMMEMORATE THE LEGACY OF RALPH B. PECK,SEVENTH INTERNATIONAL CONFERENCE ON CASE HISTORIES IN GEOTECHNICAL ENGINEERING AND SYMPOSIUM IN HONOR OF CLYDE BAKER ￿ APRIL 29-MAY 4, 2013. WHEELING, IL (CHICAGO, IL AREA)
  • Olson, S. M., M. R. Muszynski, Y. M. A. Hashash and C. Phillips (2013). Downslope Ground Movements during Liquefaction-Induced Lateral Spreading in Centrifuge Testing. 2013 Geocongress, San Diego, CA, ASCE.
  • Hashash, Y. (2012). Urban Underground Structures ￿ Earthquakes, Resilience and Sustainability. 2012 Japan-American Frontiers of Engineering Symposium, Irvine, CA.- Abstract
  • Dashti, S., K. Gillis, M. Ghayoomi and Y. M. A. Hashash (2012). Sensing of Lateral Seismic Earth Pressures in Geotechnical Centrifuge Models. 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
  • Kottke, A. R., Y. M. A. Hashash, J. P. Stewart, C. J. Moss, S. Nikolaou, E. M. Rathje, W. J. Silva and K. W. Campbell (2012). Development of Geologic Site Classes for Seismic Site Amplification for Central And Eastern North America. 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
  • Lee, S. J. and Y. M. A. Hashash (2012). An impulse-based discrete element simulation for efficient granular dynamics. 2012 Engineering Mechanics Institute and 11th ASCE Joint Specialty Conference on Probabilistic Mechanics and Structural Reliability (EMI/PMC 2012) Notre Dame, Indiana.
  • Musgrove, M. I. and Y. M. A. Hashash (2012). 1-D Equivalent Linear and Nonlinear Site Response, DEEPSOIL V 5.0 Software Demostration. 2012 Geocongress, Oakland, CA.
  • Matasovic, N. and Y. M. A. Hashash (2012). Site Response Analysis in Transportation Engineering Practice - a TRB Survey 2012 Geocongress. Oakland, CA: March 25-29. 2012.
  • Kim, B. and Y. M. A. Hashash (2012). SITE RESPONSE ANALYSIS USING THE DOWNHOLE ARRAY RECORDINGS DURING THE MARCH 2011 TOHOKU, JAPAN, EARTHQUAKE. 9th International Conference on Urban Earthquake Engineering/ 4th Asia Conference on Earthquake Engineering March 6-8, 2012, Tokyo Institute of Technology, Tokyo, Japan. Tokyo, Japan.
  • Tutumluer, E., Qian, Y., Hashash, Y.M.A., Ghaboussi, J., and Davis D. D. (2011). ￿Field Validated Discrete Element Model for Railroad Ballast.￿ Proceedings of AREMA 2011 Annual Conference/Railway Interchange 2011. September 18-21, Minneapolis, MN.
  • Moon, S.-W. and Y. M. A. Hashash (2011). Inverse analysis based interpretation of undrained direct simple shear behavior. International Symposium on Deformation Characteristics of Geomaterials, September 1~3, 2011, Seoul, Korea. Seoul, Korea.
  • Hashash, Y. M. A., D. R. Groholski and B. Kim (2011). ENHANCING SITE RESPONSE MODELING THROUGH DOWNHOLE ARRAY RECORDINGS. 4th IASPEI / IAEE International Symposium: Effects of Surface Geology on Seismic Motion. Santa Barbara, CA.
  • Kim, B., Y. M. A. Hashash, S. M. Olson and I. Ahmad (2011). Probabilistic seismic hazard analysis for Islamabad and Peshawar in Pakistan using discrete faults. 5th International Conference on Earthquake Geotechnical Engineering, Santiago, Chile.
  • Hashash, Y. M. A., Asmar, R., and Fu, Q. (2011) "Towards an Integrated Computational-Experimental Laboratory Testing Framework for Soil Behavior Characterization and Modeling." Proc., Proceedings of 2011 NSF Engineering Research and Innovation Conference,
  • Sharma, L. M., B. K. Sapkota, and Hashash, Y. (2010). NUMERICAL ANALYSIS OF PROPOSED WHARF STRUCTURE FOR PORT OF ANCHORAGE REDEVELOPMENT. Ports and Terminal Technology - 2010, Long Beach, CA.
  • Hashash, Y., M.A., K. Karina, D. C. Koutsoftas and N. O￿Riordan (2010). Seismic Design Considerations for Underground Box Structures. Earth Retention Conference 3, Bellevue, Wasington, ASCE.
  • Hashash, Y. M. A., Phillips, C., and Groholski, D. R. (2010) "Recent advances in non-linear site response analysis," Fifth International Conference in Recent Advances in Geotechnical Eartqhuake Engineering and Soil Dynamics. SanDiego, CA, p OSP 4.
  • Lee, S. J., Y. M. A. Hashash, et al. (2010). SIMULATION OF JSC-1A LUNAR SOIL SIMULANTS WITH NEW ALGORITHMS DEVELOPED FOR REALISTIC SOIL PARTICLE GEOMETRIES. International Workshop on Multiscale and Multiphysics Processes in Geomechanics. E. M. D. R.I. Borja, E. Kuhl and J.A. White. Standford University, Palo Alto, CA.
  • Huang, H., Tutumluer, E., Hashash, Y.M.A and J. Ghaboussi, "Laboratory Validation of Coal Dust Fouled Ballast Discrete Element Model," GeoShanghai 2010 International Conference, Shanghai, China, June 3-5, 2010.
  • Olson, S. M., Hashash, Y. M. A., Muszynski, M. R., Phillips, C., and Polito, C. (2010) "Using tactile pressure sensors to measure lateral spreading-induced earth pressures against large, rigid foundation," In: S. Prakash, Ed., Fifth International Conference in Recent Advances in Geotechnical Eartqhuake Engineering and Soil Dynamics. San Diego, CA, USA.
  • Zheng, W., Hashash, Y., Petersen, M. M., and Whittaker, A. S. (2010) "Site specific response analysis in the new madrid seismic zone," In: S. Prakash, Ed., Fifth International Conference in Recent Advances in Geotechnical Eartqhuake Engineering and Soil Dynamics. San Diego, CA, USA.
  • Wong, I., T. Dawson, Dober, M., Hashash, Y. (2010). EVALUATING THE SEISMIC HAZARD IN ANCHORAGE, ALASKA. 9th US Conference on Earthquake Engineering, Toronto.
  • Lee, S. J., Hashash, Y. M. A., Wilkinson, R. A., and Agui, J. H. (2010) "Simulation of Experimental Tests on the JSC-1A Lunar Soil Simulant with Polyhedral Discrete Elements," Earth & Space 2010 Conference Honolulu, Hawaii.
  • Moreno-Torres, O., Hashash, Y. M. A., and Olson, S. M. (2010 ) "A simplified coupled pore water pressure generation and soil constitutive model," GeoFlorida: Advances in analysis, modeling &design. West Palm Beach, Florida, USA.
  • Huang, H., Tutumluer, E., Hashash, Y.M.A. and J. Ghaboussi, ￿Discrete Element Modeling of Coal Dust Fouled Railroad Ballast Behavior,￿ In Preprint CD-ROM Proceedings of the 89th Annual Meeting of the Transportation Research Board (TRB), January 10-14, 2010.
  • Osouli, A., and Hashash, Y. M. A. (2009) "Predicting excavation performance via inverse analysis," 17th International Conference on Soil Mechanics & Geotechnical Engineering Alexandria, Egypt. - Selected for presentation in session TS 2C Underground Structures: Discussion Session
  • Tutumluer, E., Huang, H., Hashash, Y.M.A. and J. Ghaboussi, ￿AREMA Gradations Affecting Ballast Performance Using Discrete Element Modeling (DEM) Approach,￿ In Proceedings of the AREMA 2009 Annual Conference, Chicago, Illinois, September 20-23, 2009.
  • Finno, R. J., and Hashash, Y. M. A. (2009) "Integrated Tools for Predicting, Monitoring and Controlling Ground Movements due to Excavations," 2009 NSF Engineering Research and Innovation Conference. Honolulu, Hawaii.
  • Phillips, C., Olson, S., Hashash, Y. M. A., Muszinsky, M., and Polito, C. (2009) "Preliminary results of numerical and physical experiments of lateral spreading impact on large foundation elements, NSF Project No.: CMMI 07-2369," 7th Annual NEES Conf. Poster. Honolulu, Hawaii.
  • Chen, G., Yen, P. W., Yashinsky, M., Hashash, Y. M. A., Holub, C., Wang, K., and Guo, X. (2009) "How Bridges Respond to the May 12, 2008, M7.9 Wenchuan Earthquake in China," Asian-Pacific Network of Centers for Earthquake Engineering Research (ANCER) Workshop. Urbana, IL, USA.
  • Olson, S. M., Hashash, Y. M. A., and Moreno-Torres, O. (2009) "Geotechnical Earthquake Instrumentation at the Bill Emerson Memorial Bridge, Cape Girardeau, Missouri," Madrid seismic zone conference. Rolla, MO.
  • Groholski, D.R. and Hashash, Y.M.A. (2009) Measurement based Self Learning Simulations of Soil Behavior with an Application to dynamic soil response. 10 pages, CD proceedings CompGeo I
  • Osouli, A., and Hashash, Y. M. A. (2009) "The relationship between field measurements and soil behavior in TNEC deep excavation," International Foundation Congress & Equipment Expo Orlando, FL.
  • Jeong, C.-G., Park, D. & Hashash, Y. M. A. (2008) Simulation of rate dependent soil behavior in one-dimensional seismic wave propagation. 15th International Congress on Sound and Vibration.
  • Hashash, Y., Q. Fu, and J. Ghaboussi (2008) "Computational-Experimental Framework for Interpretation of Diverse Soil Behavior from Triaxial Tests," Fourth International Symposium on Deformation Characteristics of Geomaterials. Atlanta, GA.
  • Ghaboussi, Jamshid, GunJin Yun, and Youssef M.A. Hashash (2008) "Stability Analysis of Predictor-Corrector Algorithm for Sub-Structure Hybrid Simulation and Testing," 2008 Structures Congress: Research Advances (NEES Project). Vancouver.
  • Osouli, A., and Y.M.A. Hashash (2008) "Learning of soil behavior from measured response of a full scale test wall in sandy soil," 6th International conference on case histories in geotechnical engineering. Arlington, VA, August 11-16, 2008.
  • Huang, H., Tutumluer, E., Hashash, Y. M. A., and Ghaboussi, J. (2008). "Contact Stiffness Affecting Discrete Element Modeling of Unbound Aggregate Granular Assemblies." 1st ISSMGE International Conference on Transportation Geotechnics, Nottingham, U.K.
  • Osouli, A., and Hashash, Y. M. A. (2008). "Learning of Soil Behavior from Measured Response of a Full Scale Test Wall in Sandy Soil." Sixth International Conference on Case histories in Geotechnical Engineering and symposium in honor of Professor James K. Mitchell-, Arlington, VA (USA).
  • Phillips, C., and Hashash, Y. M. A. (2008). "A new simplified constitutive model to simultaneously match modulus reduction and damping soil curves for nonlinear site response analysis." Geotechnical Earthquake Engineering & Soil Dynamics IV (GEESD IV), Sacramento, California.
  • Qui￿s-Rozo, C., Hashash, Y. M. A., and Liu, L. (2008). "Semi-Automated Tracking of Excavation Activities Using Imaging Techniques." GeoCongress2008, New Orleans, Louisiana.
  • Song, H., Osouli, A., and Hashash, Y. (2007). "Soil behavior and excavation instrumentation layout." 7th International symposium on field measurements in geomechanics FMGM 2007., Boston, MA.
  • Tsai, C.-C. & Hashash, Y. M. A. (2007). An inverse analysis approach to extract dynamic nonlinear soil behavior from downhole array data. 4th International Conference on Earthquake Geotechnical Engineering, Thessaloniki, Greece.
  • Marulanda, C. & Hashash, Y. M. A. (2007). Relationship of inferred soil behavior to excavation instrumentation. XIII Panamerican Conference on Soil Mechanic and Foundation Engineering, Margarita, Venezuela.
  • Huang, H., Tutumluer, E., Hashash, Y. M. A. & Ghaboussi, J. (2007). Imaging Aided Discrete Element Modeling of Railroad Ballast. International Conference on Advanced Characterization of Pavement and Soil Engineering Materials, Athens, Greece.
  • Tutumluer, E., H. Huang, Hashash, Y.M.A., Ghaboussi., J. (2007). Discrete Element Modeling of Railroad Ballast. American Railway Engineering and Maintenance of Way Association (AREMA) Annual Conference.
  • Hashash, Y. M. A. (2007). Extraction of material constitutive behavior from boundary measurements of forces and displacements. Inverse Problems, Design and Optimization Symposium, Miami, Florida, U.S.A.
  • Fu, Q., Hashash, Y. M. A. & Ghaboussi, J. (2007). Non-uniformity of stresses within a sand specimen in triaxial shear. Tenth International Symposium on Numerical Models in Geomechanics, Rhodes, Greece.
  • Fu, Q., Hashash, Y. M. A. & Ghaboussi, J. (2007). Non-uniformity of stress states within a dense sand specimen. Geo-Denver 2007, Denver, Co.
  • Tutumluer, E., Huang, H., Hashash, Y. M. A. & Ghaboussi, J. (2006). Imaging Based Discrete Element Modeling of Granular Assemblies. Multiscale and Functionally Graded Materials Conference 2006 (FGM2006), Honolulu, HI.
  • Kwok, O.-L. A., Stewart, J. P., Hashash, Y. M. A., Matasovic, N., Pyke, R., Wang, Z. & Yang, Z. (2006). Utilizing nonlinear seismic ground response analysis for Turkey Flat blind Predictions. Third International Symposium on the Effects of Surface Geology on Seismic Motion,, Grenoble, France.
  • Tutumluer, E., Huang, H., Hashash, Y. M. A. & Ghaboussi, J. (2006). Aggregate Shape Effects on Ballast Tamping and Railroad Track Lateral Stability. American Railway Engineering and Maintenance of Way Association (AREMA) Annual Conference, Louisville, Kentucky, USA.
  • Hashash, Y. M. A., Liu, L. Y., Ghaboussi, J., Marulanda, C., Su, Y. Y., Song, H., and Osouli, A. "New Technologies for Tracking Urban Excavation Progress and Estimating Deformations." GeoShanghai, Shanghai, China. 2006.
  • Finno, R. J., and Hashash, Y. M. A. "Integrating Tools to Predict, Monitor and Control Deformation Due to Excavations." Geotechnical Engineering in the Information Technology Age, Atlanta. 2006
  • Hashash, Y. M. A., Liu, L., Su, Y.-Y., and Song, H. "Use of New Technologies for Tracking Excavation Progress." Geotechnical Engineering in the information technology age, Atlanta. 2006.
  • Hashash, Y. M. A., Ghaboussi, J., and Jung, S. "Characterizing Granular Material Constitutive Behavior Using SelfSim with Boundary Load-Displacement Measurements." Earth & Space 2006, Houston, TX.
  • Hashash, Y. M. A., Ghaboussi, J., Fu, Q., and Marulanda, C. "Constitutive Soil Behavior Representation via Artificial Neural Networks: A Shift from Soil Models to Soil Behavior Data." Geotechnical Engineering in the information technology age, Atlanta. 2006.
  • Groholski, D., and Hashash, Y. M. A. "Employing Visualization Techniques for Learning of Constitutive Relations." Geotechnical Engineering in the Information Technology Age, Atlanta, GA. 2006.
  • Zhao, D., E.Nezami, Hashash, Y. M. A., and Ghaboussi, J. "Discrete Element Modeling of Polyhedral Representation of Granular Materials." Earth & Space 2006, Houston, TX.
  • Tsai, C.-C., and Hashash, Y. M. A. "A novel framework for extracting dynamic soil behavior from downhole array data." Eighth National Conference on Earthquake Engineering, San Francisco, CA. 2006.
  • Nezami, E. G., Hashash, Y. M. A., and Ghaboussi, J. "A Model for Large-Scale Near-Real Time Simulation of Granular Material Flow." Earth & Space 2006, Houston, TX.
  • Nezami, E., Zhao, D., Hashash, Y. M. A., Bauer, G., Raila, D., and Ghaboussi, J. "Large Scale Numerical Simulation via Parallelization and Reconfigurable Computing Hardware." Geotechnical Engineering in the Information Technology Age, Atlanta. 2006
  • Kwok, O.-L. A., Stewart, J. P., Hashash, Y. M. A., Matasovic, N., Pyke, R., Wang, Z., and Yang, Z. "Practical Implementation of Analysis Routines for Nonlinear Seismic Ground Response Analysis." Eighth National Conference on Earthquake Engineering, San Francisco, CA. 2006
  • Stewart, J. P., Kwok, O.-L. A., Hashash, Y. M. A., Matasovic, N., Pyke, R., Wang, Z. & Yang, Z. (2006). Overcoming Hurdles that Limit the Application of Nonlinear Seismic Ground Response Analysis in Engineering Practice. Fifth National Seismic Conference on Bridges and Highways, San Francisco.
  • Hashash, Y. M. A., Nezami, E., Dawei, Z., and Ghaboussi, J. "DBLOCK3D: A 3-D discrete element analysis code for simulation of granular media and soil-machine interaction." NASA Workshop on Granular Materials in Lunar and Martian Exploration, Kennedy Space Center, Florida. 2005
  • Hashash, Y. M. A., and Ghaboussi, J. "SelfSim: A novel approach to extract complex material behavior using boundary load-displacement measurements." NASA Workshop on Granular Materials in Lunar and Martian Exploration, Kennedy Space Center, Florida. 2005
  • Ghaboussi, J., Pecknold, D. A., Hashash, Y. M., and Kwon, T.-H. "Constitutive Modeling in Bio-Medicine with SelfSim." Plasticity 2005, Kauai.
  • Filho, J. N. O., Su, Y.-Y., Song, H., Liu, L. Y., and Hashash, Y. M. A. "Field Tests of 3D Laser Scanning in Urban Excavation." International Conference on Computing in Civil Engineering, Cancun, Mexico.2005
  • Nezami, E. G., Zhao, D., Hashash, Y., and Ghaboussi, J. "Shortest Link Method for Contact Detection in 3D DEM Simulations." 8th US National Congress on Computational Mechanics, Austin, TX. 2005
  • Hashash, Y. M. A., and Finno, R. J. "Development of new integrated tools for predicting, monitoring and controlling ground movements due to excavations." Underground Construction in Urban Environments, A Specialty Seminar, New York City. 2005
  • Su, Y. Y., Filho, J. N. O., Liu, L. Y., and Hashash, Y. M. A. "Integration of Construction Field Data and Geotechnical Analyses." Construction Research Congress 2005, San Diego.
  • Hashash, Y.M.A., J.N. Oliveira Filho, Y.Y. Su, and L.Y. Liu. 3D Laser Scanning for Tracking Supported Excavation Construction. in Geo-Frontiers 2005. 2005. Austin, TX.
  • Butkovich, J.N. and Y.M.A. Hashash. Neural Network Material Model Enhancement: Optimization Through Visualization and Selective Data Removal. in Geo-Frontiers 2005. 2005. Austin, TX.
  • Hashash, Y.M.A., C. Marulanda, Q. Fu, and J. Ghaboussi. A novel approach to extracting complex soil behavior. in Plasticity 2005. 2005. Kauai.
  • Marulanda, C., J. Butkovich, Y.M.A. Hashash, and J. Ghaboussi. Constitutive Model Update Using Observed Field Behavior. in International Symposium on Numerical Models in Geomechanics. 2004. Ottawa, Canada.
  • Ghaboussi, J., Hashash, Y. M. A., Alperstein, B., J.N.Mandal, Gandhi, S. R., Kumar, S., Wu, A., and Fishman, K. "Case histories of retaining structures and deep excavations." Fifth International Conference on Case Histories in Geotechnical Engineering, New York City,NY. 2004
  • Elnashai, A., B. F. Spencer, D. Kuchma, Y. M. A. Hashash, J. Ghaboussi and G. Gan (2004). Multi-axial full-scale sub-structured testing and simulation (MUST-SIM) facility at the University of Illinois at Urbana-Champaign. 13 World Conference on Earthquake Engineeing, Vancouver, B.C.
  • Hashash, Y. M. A., J. Ghaboussi, G. J. Yun and A. Elnashai (2004). Development of a software framework for MUST-SIM: An integrated computational and experimental simulation facility. 13th World Conference on Earthquake Engineering, Vancouver, BC.
  • Park, D. and Y.M.A. Hashash. Integration of probabilistic seismic hazard analysis with nonlinear site effects and application to the Mississippi embayment". in Asian-Pacific Network of Centers for Earthquake-Engineering Research (ANCER). 2004. Honolulu, Hawaii.
  • Trupp, T., L. Soibelman, Y.M.A. Hashash, and L.Y. Liu. Novel Technologies for Construction Field Data Collection. in Xth International Conference on Computing in Civil and Building Engineering. 2004. Weimar, Germany.
  • Marulanda, C., Y. M. A. Hashash, S. Jung and J. Ghaboussi (2004). Integration of field measurements in model simulation of urban excavations. Geo-Beirut 2004, Beirut, Lebanon.
  • Trupp, T., L. Liu and Y. M. A. Hashash (2004). Monitoring excavations using 3D laser scanning and digital close-range photogrammetry. North American Tunneling 2004 Conference and Exhibition, Atlanta, GA.
  • Trupp, T., C. Marulanda, Y. M. A. Hashash, L. Liu and J. Ghaboussi (2004). Novel methodologies for tracking construction progress of deep excavations. Geo-Trans 2004, Los Angeles, CA.
  • Park, D., S. Pezeshk and Y. M. A. Hashash (2004). Nonlinear seismic site response of deep deposits in West Tennessee. Fourth National seismic conference, Memphis, TN.
  • Nezami, E., Y. M. A. Hashash, J. Ghaboussi and D. Zhao (2003). A fast contact detection algorithm for Discrete Element Method. EM 2003, 16th ASCE Engineering Mechanics Conference, Seattle, WA.
  • Hashash, Y.M.A. Correlation of Strain Gage Data for Cross Lot Bracing of a Cut-and-Cover Tunnel. in 2003 Structures Congress. 2003. Seattle, Washington.
  • Hashash, Y.M.A., C. Marulanda, J. Ghaboussi, and S. Jung. Update of a numerical model of a deep excavation using field measurements. in Soil Rock America 2003, 12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering. 2003. Boston, MA.
  • Hashash, Y.M.A., D. Park, and J.-M. Oh. Seismic site response of deep soil deposits and relationship to response of longitudinal structures. in 4th China-Japan-US Trilateral Symposium on Lifeline Earthquake Engineering. 2002. Qingdao, China: 185-192.
  • Nezami, E. and Y.M.A. Hashash. The use of static discrete element method to simulate biaxial compression test. in 3rd International Conference on Discrete Element Methods. 2002. Santa Fe, NM: ASCE: pp. 294-298.
  • Hashash, Y.M.A. and J. Ghaboussi. Discrete Element Modeling for the Development of a Real-Time Soil Model in a Virtual Reality Environment. in 3rd International Conference on Discrete Element Methods. 2002. Santa Fe, NM: ASCE: pp. 112-117.
  • Hashash, Y.M.A. and D. Park. Site response analysis in the mississippi embayment. in U.S.-JAPAN Seminar on Seismic Disaster Mitigation in Urban Area by Geotechnical Engineering. 2002. Anchorage, Alaska: 19 p.
  • Park, D. and Y.M.A. Hashash. Site response analysis of deep deposits. in Seventh U.S. National Conference on Earthquake Engineering. 2002. Boston, MA: EERI.
  • Ghaboussi, J., Y.M.A. Hashash, and V. Kindratenko. Real-time soil modeling for machine-medium interaction in virtual reality. in NUMOG VIII. 2002. Rome, Italy, pp. 207-212.
  • Hashash, Y.M.A., J. Ghaboussi, S. Jung, and C. Marulanda. Systematic update of a numerical model of a deep excavation using field performance data. in NUMOG VIII. 2002. Italy, pp. 517-522.
  • Hashash, Y.M.A., J. Ghaboussi, S. Jung, and C. Marulanda. Direct field calibration of model simulations of deep excavations. in Plasticity, Damage and Fracture at Macro, Micro and Nanon Scales, Plasticity 2002. 2002. Aruba: NEAT Press: pp. 21-23.
  • Hashash, Y.M.A., J.-S. Lee, D. Wotring, and J.I.-C. Yao. Object oriented based visualization framework of constitutive models in geomechanics. in Sixth U.S. National Conference on Computational Mechanics. 2001. Dearborn, Michigan.
  • Hashash, Y.M.A. and Yao, J.I.-C. Seismic design and analysis of underground structures, an overview. in KEERC-MAE Joint Seminar on Risk Mitigation for Regions of Moderate Seismicity. Urbana, IL, 2001.
  • Hashash, Y.M.A. and Park, D. (2001) Modeling of site amplification of ground motion. in KEERC-MAE Joint Seminar on Risk Mitigation for Regions of Moderate Seismicity. Urbana, IL, 2001.
  • Hashash, Y.M.A., Park, D, and Lee,J-S, (2001) "Non-linear Site Response Analysis for Deep Deposits in the New Madrid Seismic Zone," Fourth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, March 26-31.
  • Hashash, Y.M.A. Seismic behavior of underground structures and site response. in China-U.S. Millennium Symposium on Earthquake Engineering, Nov. 2000. 2001. Beijing: A.A. Balkema, pp. 243-249
  • Hashash, Y.M.A., ￿Seismic site response analysis for deep deposits in the New Madrid Seismic Zone.￿ International Young Geotechnical Engineers Conference 2000, Southampton, UK 8th - 13th September 2000
  • Schmidt, B.S. and Hashash, Y.M.A. (1999) "Preventing tunnel flotation due to liquefaction," 2nd International conference on Earthquake Geotechnical Engineering, June 21-25, Lisboa, Portugal.
  • Stewart, D.P., Idriss, I.M., Boulanger, R. W., Hashash, Y.M.A., and Schmidt, B, (1999) "Mitigation of earthquake liquefaction hazards: a review of physical modeling studies," Proceedings, 8TH australia new Zealand Conference on Geomechanics, Vol. 1, pp. 337-343.
  • Schmidt, B., and Hashash, Y.M.A., "Seismic Rehabilitation of Two Immersed Tube Tunnels," World Tunnel Congress '98, Tunnels and Metropolises.
  • Boulanger, R.W., Idriss, I.M., Stewart, D.P., Hashash, Y.M.A., and Schmidt, B., "Drainage Capacity of Stone Columns or Gravel Drains for Mitigating Liquefaction Hazards," Geotech. Earthquake Engrg. and Soil Dynamics Conf. III, ASCE, Vol I, pp. 678-690, Seattle, Washington, 1998.
  • Hashash, Y.M., Tseng, W.S., and Krimotat, A., "Seismic Soil-Structure Interaction Analysis for Immersed Tube Tunnels Retrofit,", Geotechnical Earthquake Engineering and Soil Dynamics Conference III, ASCE, Vol. 2, pp.1380-1391, Seattle, Washington, 1998.
  • Hashash, Y.M.A., Schmidt, B., and Abramson, L.W. "Impact of Tunneling on Adjacent Subway Tunnels," XIV Int. Conf. on Soil Mech. and Found. Engrg., Hamburg, Germany, September 1997, Vol. 3, pp. 1509-1512.
  • Whittle, A.J., and Hashash, Y.M.A., "Soil Modeling and Prediction of Deep Excavation Behavior," Proc. of the Int. Symp. on Prefailure Deformation Characteristics of Geomaterials, Sapporo, Japan, 1994.
  • Mrugala, M., and Hashash, Y.M.A., "Performance and Modeling of a Shaft in Taylor Marl," Proc. of the 8th Int. Conf. Int. Assoc. of Computer Methods and Advances in Geomechanics, Morgantown, West Virginia, 1994.
  • Hashash, Y.M..A., and Cook, R.F., "Effective Stress Analysis of Super Collider Tunnels," Proc. of the 8th Int. Conf., Int. Assoc. of Computer Methods and Advances in Geomechanics, Morgantown, West Virginia, 1994.
  • Whittle, A.J., and Hashash, Y.M.A., "Analysis of the Behavior of Propped Diaphragm Walls in a Deep Clay Deposit," Int. Conf. on Retaining Structures, Robinson College, Cambridge University, United Kingdom, July 1992.

Invited Lectures

  • Seismic Interaction of Tall Buildings with Underground Structures and Nonlinear SSI
  • Grand Challenges in Earthquake Engineering: Geotechnical Systems
  • Use and Misuse of Numerical Modeling in Geotechnical Engineering Applications
  • Innovations in Modeling and Monitoring Technologies for Response of Deep Urban Excavations
  • Seismic Interaction Between Tall Buildings and Underground Structures
  • LEARNING OF MATERIAL RESPONSE USING EVOLUTIONARY INVERSE ANALYSIS TECHNIQUES
  • Innovations in Modeling and Monitoring Technologies for Response of Deep Urban Excavations
  • Seismic Interaction Between Tall Buildings and Underground Structures
  • Railroad Ballast Modeling Using Polyhedral Discrete Elements
  • Geotechnical Reconnaissance of the April 2015 Gorkha (Nepal) Earthquake
  • Geotechnical Dimensions of October 2012 Hurricane Sandy along the US East Coast
  • Special Site Conditions in Central and Eastern U.S.
  • Geotechnical Aspects of October 2012 Hurricane Sandy along the US East Coast
  • 2012 Hurricane Sandy Along the US East Coast: A Geotechnical Perspective
  • Geotechnical Engineering Perspective on Sustainability and Resiliency Implications of Hurricane Sandy
  • Innovations in Monitoring Technologies for Deep Urban Excavations
  • Current Issues in Evaluation of Seismic Site Effects
  • Innovations in Modeling and Monitoring Technologies for Response of Deep Urban Excavations
  • 2012 Hurricane Sandy along the US East Coast: A Geotechnical Perspective
  • Modeling techniques for nonlinear site response; Developments, limitations and future directions
  • iDEM: An Impulse-based Discrete Element Method for Fast Granular Dynamics
  • Computational Geomechnics, Earthquake engineering,and Urban underground structures and sustainability
  • Seismic design of underground structures
  • Recent issues in Geotechnical Earthquake Engineering: (a) nonlinear site response analysis, (b) observations of damage during the recent Japan Earthquake.

Other Publications

  • Towards an Integrated Computational-Experimental Laboratory Testing Framework for Soil Behavior Characterization and Modeling, No: 0856322, NSF CMMI Engineering Research and Partnership Conference, 2012, Boston, MA, Poster
  • NEESR: SEISMIC RESPONSE OF SHALLOW UNDERGROUND STRUCTURES IN DENSE URBAN ENVIRONMENTS, Quake Summit 2012, Boston, MA, Poster
  • Lateral Spreading-Induced Pressures against a Large, Rigid Foundation, Quake Summit 2012, Boston, MA, Poster
  • Olson, S., Hashash Y., M.A., M, Muszynski, Phillips, C. (2011)￿Preliminary Results of Centrifuge and OpenSees Modeling of Lateral Spreading Pressures Against a Large, Rigid Foundation￿ Presented by Mark Muszynski at the 24th SAGEEP Conference, April 12, 2011
  • Olson, S., Hashash Y., M.A., M, Muszynski, Phillips, C. (2011) ￿Measuring Pressures in the Geotechnical Centrifuge Using Tactile Pressure Pads￿ Presented by Prof. Olson at the 7th Annual NEES Centrifuge Research and Training Workshop at Rensselaer Polytechnic Institute, May 17, 2011
  • Olson, S., Hashash Y., M.A., M, Muszynski, Phillips, C. (2010) ￿Centrifuge Testing and Parallel Numerical Simulations of Lateral Pressures Measured Against a Rigid Caisson￿ Presented by S. Olson at Quake Summit 2010, October 9, 2010
  • Olson, S., Hashash, Y. M.A., M, Muszynski, Phillips, C. (2009) ￿University of Illinois Centrifuge Testing at Rensselaer Polytechnic Institute; Investigating Lateral Earth Pressures Against a Rigid Caisson as a Result of Lateral Spreading￿ Presented by Prof. Olson at UC Davis, September 10, 2009
  • Olson, S., Hashash, Y. M.A., M, Muszynski, Phillips, C. (2009) NEES annual meeting presentation on ￿NEESR-SG: Soil Improvement Strategies to Mitigate Impact of Seismic Ground Failures via Novel Integration of Experiment and Simulation￿ 18-21 June, Portland, Oregon.
  • Hashash, Y.M.A. and J. Ghaboussi. SelfSim: A NOVEL APPROACH TO EXTRACT COMPLEX MATERIAL BEHAVIOR USING BOUNDARY LOAD-DISPLACEMENT MEASUREMENTS. in NASA Workshop on Granular Materials in Lunar and Martian Exploration. 2005. Kennedy Space Center, Florida.
  • Hashash, Y.M.A., E. Nezami, Z. Dawei, and J. Ghaboussi. DBLOCK3D: A 3-D discrete element analysis code for simulation of granular media and soil-machine interaction. in NASA Workshop on Granular Materials in Lunar and Martian Exploration. 2005. Kennedy Space Center, Florida.
  • Ghaboussi, J. and Y.M.A. Hashash. Recent advances in soft computing methods in geomechanics. in International Symposium on Numerical Models in Geomechanics. 2004. Ottawa, Canada.
  • Wotring, D. and Y. M. A. Hashash (2003). Visual representation of material stiffness and stress-strain behavior in geomechanics modeling. Seventh US National Congress on Computational Mechanics, Albuquerque, NGhaboussi, J. and Y. M. Hashash (2003). Development of constitutive models from structural response: Autoprogressive Algorithm. Seventh International Conference on Plasticity, Quebec City, Canada.
  • Marulanda, C., Y. M. A. Hashash and J. Ghaboussi (2003). Constitutive model update using observed field behavior. Seventh US National Congress on Computational Mechanics, Albuquerque, NM.
  • Ghaboussi, J. and Y.M.A. Hashash. Biologically inspired soft computing methods in constitutive modeling, KEYNOTE LECTURE. in Plasticity, Damage and Fracture at Macro, Micro and Nanon Scales, Plasticity 2002. 2002. Aruba: NEAT Press.
  • Hashash, Y.M.A., J.-S. Lee, D. Wotring, and J.I.-C. Yao. Object oriented based visualization framework of constitutive models in geomechanics. in Sixth U.S. National Conference on Computational Mechanics. 2001. Dearborn, Michigan.

Patents

  • Patent 8,095,344 B2, Notice of Allowance 12/250,936, Methods and systems for modeling material behavior. Publication date 10 Jan 2012. Filing date 14 Oct 2008.
  • Patent 8,070,679 B2, patent ￿Accurate Determination of Intraocular Pressure and Characterization of Mechanical Properties of the Cornea,￿. Publication date 6 Dec 2011. Filing date 21 Jul 2008
  • Patent 7,447,614 B2 (Notice of Allowance, U.S. Patent Application: No. 10/409,882 Methods and systems for modeling material behavior.Publication date 4 Nov 2008. Filing date 9 Apr 2003.
  • Patent 7,356,449 (Notice of Allowance U.S. Patent Application: No. 10/123,357): Methods and program product for solid mechanics modeling. Youssef M.A. Hashash. Publication Date: 8 Apr 2008. Filing Date: 16 Apr 2002.
  • Patent 7,246,047: Methods for Modeling Material Response to Applied Force., J. Ghaboussi and Youssef M.A. Hashash. Publication Date 17 Jul 2007. Filing Date: 9 Apr 2003.

Magazine Articles

  • Two EERI articles, once on ANSS and one on Tohokou earthquake
  • Andrew Liu, Farhang Ostadan, and Youssef Hashash (2010) Current Practice in Seismic Design of Earth Retaining Structures, to appear, GeoStrata
  • (2010) The World's 18 Strangest Tunnels: Gallery, by Chris Sweeney, published online in Popular Mechanics. Prof. Hashash is heavily quoted in this article based on an interview with Chris Sweeney.
  • Hashash, Y.M.A., Qui￿s-Rozo, C.A., Groholski, D.R. (2009). "Tracking of Excavation Activities by Laser Scanning and Image Reasoning-based Techniques." Geotechnical Instrumentation News, March.
  • (2007) "Understanding Ballast Behavior," Railway Track and Structures magazine, August Issue http://www.nxtbook.com/nxtbooks/sb/rts0807/
  • Hashash, Y. M. and C. Marulanda (2003). Temperature correction and strut loads interpretation in Central artery Excavations. Geotechnical News. 21: 30-31.
  • Schmidt, B., Hashash, Y.M.A. and Stimac, T. "US immersed tube retrofit" by, Pages 22-24, in Tunnels & Tunneling International, November 1998 (Vol 30, No. 11).
  • Hashash, Y.M.A., Schmidt, B., and Stimac, T., "Unique Ground Improvement Designs for Seismic Retrofit of Posey and Webster Street Tubes," Parsons Brinckerhoff, PB Network, Fall 1997, Issue No. 40, pp. 24-26.
  • Hashash, Y.M.A., Rawnsely, R.P., and Whittle, A.J., "Finite Element Analysis of Excavation Performance," Parsons Brinckerhoff, PB Network, Fall 1996, Issue No. 36, p. 31.
  • Hashash, Y.M.A., Schmidt, B., and Abramson, L.W., "BART Tunnel Monitoring During MUNI Tunnel Construction," Geotechnical News, June 1995. Translated into Chinese, San Lien Technics, Vol. 38, 1996.

Reports

  • Youssef M.A. Hashash, Joseph A. Harmon, Okan Ilhan, Grace A. Parker, and Jonathan P. Stewart PEER 2017/05 - Recommendations for Ergodic Nonlinear Site Amplification in Central and Eastern North America.
  • Jonathan P. Stewart, Grace A Parker, Joseph P. Harmon, Gail M. Atkinson, David M. Boore, Robert B. Darragh, Walter J. Silva, and Youssef M.A. Hashash PEER 2017/04 - Expert Panel Recommendations for Ergodic Site Amplification in Central and Eastern North America
  • Tutumluer, E., Hashash, Y. M.A., Ghaboussi, J. Qian, Y., Lee, S.J. and Huang, H., (2013). ￿Discrete Element Modeling of Railroad Ballast Behavior.￿ Federal Railroad Administration Technical Report, FR-RRF-0033-11-01-00, October, 2013 (in press)
  • Christine A. Goulet, Tadahiro Kishida, Timothy D. Ancheta, Chris H. Cramer, Robert B. Darragh, Walter J. Silva, Youssef M.A. Hashash, Joseph Harmon, Jonathan P. Stewart, Katie E. Wooddell, and Robert R. Youngs, "PEER NGA-East Database" PEER 2014/17
  • Jonathan P. Stewart, Kioumars Afshari, and Youssef M.A. Hashash, "Guidelines for Performing Hazard-Consistent One-Dimensional Ground Response Analysis for Ground Motion Prediction" PEER 2014/16
  • Kenneth W. Campbell, Youssef M.A. Hashash, Byungmin Kim, Albert R. Kottke, Ellen M. Rathje, Walter J. Silva, and Jonathan P. Stewart, 2014, Reference-Rock Site Conditions for Central and Eastern North America: Part II ￿ Attenuation (Kappa) Definition, Pacific Earthquake Engineering Research Center Report No. 2014/12
  • Youssef M.A. Hashash, Albert R. Kottke, Jonathan P. Stewart, Kenneth W. Campbell, Byungmin Kim, Ellen M. Rathje, and Walter J. Silva, "Reference-Rock Site Conditions for Central and Eastern North America: Part I - Velocity Definition" Pacific Earthquake Engineering Research Center PEER 2014/11
  • Hashash, Y. M. A., S. Nikolaou, B. Sukumaran, A. Sacks, M. Burlingame, C. Baxter, A. Bradshaw, L. Wooten, H. Lacy, C. Moss, J. Daraio and T. D. O￿Rourke (2013). Field Reconnaissance of Geotechnical Aspects of October 2012 Hurricane Sandy along the US East Coast. GEER-032.
  • Matasovic and Hashash (2012) Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions, NCHRP Synthesis Study 428. National Cooperative Highway Research Program, Transportation Research Board, National Academies.
  • Contributing author to : The Geo-Engineering Extreme Events Reconnaissance (GEER) preliminary report on the geotechnical effects of the 2010 Chile Earthquake is now available: Preliminary Report on Geotechnical Effects of the 2010 Chile Earthquake, Editors Jonathan Bray and David Frost
  • Elnashai, A. S., B. Gencturk, O.-S. Kwon, I. L. Al-Qadi, Y. Hashash, J. R. Roesler, S. J. Kim, S.-H. Jeong, J. Dukes and A. Valdivia (2010). The Maule (Chile) Earthquake of February 27, 2010 Consequence Assessment and Case Studies, Mid-America Earthquake Center.
  • Durrani, A. J., Elnashai, A. S., Hashash, Y. M. A., Kim, S.-J., and Masud, A. (2005). "The Kashmir Earthquake of October 8, 2005. A quick look report." MAE Center Report No. 05-04, Mid-America Earthquake Center, University of Illinois at Urbana-Champaign, Urbana.
  • Park, D. and Y.M. Hashash, Estimation of non-linear seismic site effects for deep deposits of the Mississippi Embayment. 2004, Mid America Earthquake Center: Urbana. p. 276.
  • Boulanger, R.W., Stewart, D.P., Idriss, I.M., Hashash, Y., Schmidt, B., "Ground Improvement Issues for the Posey & Webster St. Tubes Seismic Retrofit Project: Lessons from Physical Modeling" Center for Geotechnical Modeling, Univ. of California at Davis, Report No. UCD/CGM-97/04.
  • Boulanger, R.W., Stewart, D.P., Idriss, I.M., Hashash, Y., Schmidt, B., "Ground Improvement Issues for the Posey & Webster St. Tubes Seismic Retrofit Project: Lessons from Case Histories," Center for Geotechnical Modeling, Univ. of California at Davis, Report No. UCD/CGM-97/03.
  • Whittle, A.J., and Hashash, Y.M.A., "Analysis of Excavations in Taipei Clay," Research Report R93-12, Dept. of Civil and Environmental Engineering, MIT, Cambridge, Massachusetts, 1993.
  • Hashash, Y.M.A., and Whittle, A.J., "Analysis of Braced Diaphragm Walls in Deep Deposits of Clay," Research Report R92-19, Dept. of Civil and Environmental Engineering, MIT, 1992.
  • Einstein, H.H., and Hashash, Y.M.A., "Genesis of Fractures and Fracture Zones, Fracture Flow Research," Report to Golder Associates, Seattle, Washington, 1987.

Journal Editorships

  • Special Issue Editor, Earthquake Spectra, Nepal Issue (2016-2017)
  • Associate Editor, Tunneling and Underground Space Technology 2010-current
  • Geotechnical Informatics specialty editor, Journal of Computing in Civil Engineering, 2008-current
  • Editorial Board Member, Computers and Geotechnics, 2007-current
  • Advisory Board Member, International Journal for Numerical and Analytical Methods in Geomechanics, 2007-current
  • Editor, Special Issue, Computers and Geotechnics 2007
  • Editorial Board Member, ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2004-current

Professional Societies

  • 2016-2017 Geoinstitute Board of Governors - Vice President
  • 2015-2016 Geoinstitute Board of Governors - Treasurer
  • 2014-2015 Geoinstitute Board of Governors - Member
  • 2016 ASCE GeoCongress Organizing Committee
  • Editorial Board Member Soil Dynamics and Earthquake Engineering
  • 2014-current Associate Editor, Journal of Earthquake Engineering
  • 2014-current Member of Board of Governors, GeoInstitute of ASCE
  • Session Moderator: Seismic Earth Pressures on Retaining Structures and Basement Walls, Speaker: Nicholas Sitar Session Moderator: Braced Excavations in Soft Soils, Speaker: Demetrious C. Koutsoftas, P.E. Session Moderator: Seismic design of retaining Structure 2012 GeoCongress, Oakland, Ca, March 2012
  • Session moderator, Geotechnical Issues, 9th International Conference on Urban Earthquake Engineering/ 4th Asia Conference on Earthquake Engineering, March 6-8, 2012, Tokyo Institute of Technology, Tokyo, Japan. Tokyo, Japan.
  • Session co-moderator, Breakout Session 2c: Geotechnical Engineering , E-Defense/NEES collaboration on Underground Structures testing, 2010 Quake Summit, San Francisco, CA
  • 2008-2010 Chair, Earth Retaining Structures Conference ER 2010 held in Bellevue, WA. This is a conference held once every 20 years and is a landmark conference in the area of retention structures
  • EERI/FEMA 2005-2006 graduate fellowship selection committee, 2005
  • American Society of Civil Engineers : Session co-Chair, ￿Breakout session T1d ￿Underground Structures￿ GEESD IV, Tuesday, 2008, Sacramento, California.
  • American Society of Civil Engineers : Session co-chair, Earth Retaining Structure, 10:30-12:0 Monday Feb 19 2007, GeoDenver, Denver Colorado.

Service on Department Committees

  • Chair, CEE Advisory Committee 2016-2017
  • Chair, CEE Faculty Search Committee 2015-2016
  • Promotion and Tenure Committee 2015-current
  • Faculty Search Committee, CEE, Geotechnical Group, Fall 2002-Spring 2003
  • Faculty Search Committee, CEE, Transportation Division, Spring 2000
  • Physics Liaison Committee, Fall 1999, Spring 2000, Fall 2000, till present
  • Curriculum Committee, CEE, Fall 1999, Spring 2000, Fall 2000
  • Outcomes Assessment, Civil & Environmental Engineering Department, Spring 1999
  • Computer Support Committee, Civil & Environmental Engineering Department, Fall 1998, Spring 1999, Fall 1999, Spring 2000, Fall 2000, current, Chair 2006-current
  • Information Technology Committee, Civil & Environmental Engineering Department, Summer 2001, Fall 2001, Spring 2002, current

Service on College Committees

  • 2015 Dean's Committee of new CS Marketing specialty degree
  • 2011-2012 Engineering Facilty Leadership Forum
  • Fall 2011 Dean's Committee on Curriculum review of Technology and Management Program Review, a joint program between the College of Engineering and College of Business

Service on Campus Committees

  • Alternate Campus Represntative to Dr. M. Loots, Campus represntative on Board of Great Lakes Consortium for Petascale Computation, 2010-current

Service to Federal and State Government

  • 2016-2017 Member of the National Academy of Sciences Committee on the Spirit Lake System
  • 2015 USGS Proposal Review
  • 2014-NSF proposal review panel
  • 2012 - NSF proposal review panel
  • 2011- NSF proposal review panel
  • National Academies - National Research Council - member - Committee on Underground Engineering for Sustainable Development 2010-2012
  • Coordinator of the Geotechnnical Working Group for "Next Generation Attenuation Relationship for Central and Eastern U.S.", through Pacific Earthquake Engineering Research (PEER) Center sponsored by Nuclear Regulatory Commission (NRC), Department of Energy (DOE), U.S. Geologic Survery (USGS) and Electric Power Research Institute (EPRI). Responsible for coordinating $1 million of research activity. The product of the group will affect the seismic hazard maps of US east of the Rockies.
  • Technical Reviewer - Project on : Improved Procedures for Characterizing and Modeling Soil-Structure Interaction for Performance-Based Seismic Engineering - Advanced Technology Council (ATC-83) NEHRP Consultant Joint Venture Task Order 10, for NIST. 2010-2012
  • Steering Committee, TURKEY FLAT, USA SITE EFFECTS TEST AREA, Strong-Motion Test, California Geologic Survey, 2004-2006. Carl Stepp (chair), Earthquake Hazards Solutions; C.Y. Chang, Geomatrix Consultants; Brian Chiou, California Department of Transportation; Chris Cramer, U.S. Geological Survey; I.M. Idriss, University of California, Davis; Marshall Lew, MACTEC Engineering & Consulting Inc; Maurice Power, Geomatrix Consultants; Charles Real, California Geological Survey; Wolfgang Roth, URS Corporation; Anthony Shakal, California Geological Survey; Jonathan Stewart, University of California, Los Angeles;
  • Advanced National Seismic System (ANSS) National Steering Committee, Earthquake Hazards Program, US Geologic Survey: i. Alternate Member representing Earthquake Engineering Research Institute, 2001-2006 ii. Member, 2006- present
  • USGS NEHRP Earthquake Effects review panel, August 2008.
  • USGS NEHRP Earthquake Effects review panel, August 2007.

Other Outside Service

  • 2015 co-leader GEER team to investigated the aftermath of Nepal Earthquake
  • 2012 - Presentation on Geotechnical Engineering and Field Visit of Newmark Civil Engineering Laboratory (Mar 13, 2012) to 4th and 5th grade classes of Next Generation Elementary School
  • 2011- Presentation on Japan Earthquake with hands on experience, Next Generation School, Grade 1 & 3 classes.
  • 2011-Spring Newspaper interview and quotation, San Francisco Examiner: http://www.sfexaminer.com/local/transportation/2011/03/corroding-muni-tunnels-have-never-been-seismically-tested
  • Keynote speech, Order of Engineering Initiation Ceremony, University of Illinois at Urbana-Champaign, Spring 2010
  • 2010 - Presentation on Chile Earthquake, Next Generation School, Kindergarten and Grade 2 classes.
  • Newspaper interview, Daily Illini, Dec 2005, Pakistan Earthquake.
  • Newspaper interview, News Gazette, Nov 2005, Pakistan Earthquake.
  • Radio Interview, WILL, Nov 2005, Pakistan Earthquake.
  • Television Interview with WCIA, Nov 2005, Paksitan Earthquake.

Teaching Honors

  • List of Teachers Ranked as Excellent by their students (Spring 2011)
  • List of Teachers Ranked as Excellent by their students (Spring 2010)
  • 2010 Outstanding Advisors List (May 3, 2010)
  • List of Teachers Ranked as Excellent (Fall 2009)
  • List of Teachers Ranked as Excellent (Spring 2009)
  • 2009 Outstanding Advisors List (April 28, 2009)
  • List of Teachers Ranked as Excellent (Spring 2008)
  • Informal recognition, (May 2, 2007)
  • Incomplete List of Teachers Ranked as Excellent (Fall 2006)
  • 2006 Collins Award for Innovation in Teaching, College of Engineering, UIUC (2006)
  • Incomplete List of Teachers Ranked as Excellent (Fall 2005)
  • Incomplete List of Teachers Ranked as Excellent (Spring 2005)
  • Incomplete List of Teachers Ranked as Excellent (Fall 2004)
  • Incomplete List of Teachers Ranked as Excellent (Spring 2004)

Research Honors

  • 2014 Peck Medal, Geo-Institute of the American Society of Civil Engineers (2014)
  • 2012 Japan-American Frontiers of Engineering Symposium, Irvine, CA (2012)
  • CEE Research Innovation Grant (2011-2012)
  • 2009 Xerox Award for Faculty Research, UIUC (2009)
  • 2006 Walter L. Huber Civil Engineering Research Prize, ASCE (2006)
  • 2005-2006 National Center for Supercomputing Applications Faculty Fellow (NCSA) at the University of Illinois at Urbana-Champaign. (2005)
  • 2003 Xerox Award for Faculty Research, UIUC (2003)
  • 2002-2003 Beckman Fellow, Center for Advanced Studies, UIUC (2002)
  • 2001-2003 American Bridge Faculty Scholar Award, CEE, UIUC (2001)
  • 2000 Presidential Early Career Award for Scientists and Engineers, President of the United Sates of America, William J. Clinton. (2000)

Public Service Honors

  • Chi-Epsilon Honorary member, University of Illinois Chapter (2014)
  • Computer and Geotechnics editor award (2009)
  • 2006 Committee of the Year Award, ASCE Geo-Institute, (2006)