Faculty Profile

Oscar Lopez-Pamies

Civil and Environmental Engineering
Oscar Lopez-Pamies
Oscar Lopez-Pamies
Associate Professor
3106 Newmark Civil Engineering Bldg
205 N. Mathews
Urbana Illinois 61801
(217) 244-1242

Administrative Titles

  • CEE Excellence Faculty Fellow

Primary Research Area

  • Structural Engineering

Education

  • Ph.D. in Mechanical Engineering & Applied Mechanics, University of Pennsylvania, USA, 2006
  • Ph.D. in Solid Mechanics, Ecole Polytechnique, France, 2006
  • M.S. in Mechanical Engineering, University of Maryland Baltimore County, USA, 2002
  • B.S. in Mathematics, University of Maryland Baltimore County, USA, 2001
  • B.S. in Mechanical Engineering, University of Maryland Baltimore County, USA, 2001

Biography

Oscar Lopez-Pamies holds a bachelor of science degree in Mechanical Engineering (2001), a bachelor of arts degree in mathematics (2001) and a master of science degree (2002) from the University of Maryland Baltimore County; and a Ph.D. in Mechanical Engineering and Applied Mechanics (2006) from the University of Pennsylvania and the ￿ole Polytechnique.￿ He joined the department in 2011.￿ Prior to that, Lopez-Pamies was an assistant professor in the Department of Mechanical Engineering at the State University of New York, Stony Brook. He teaches graduate and undergraduate courses in methods of structural analysis, mechanics of solids, homogenization, composite materials and polymers, numerical methods for pdes.
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Academic Positions

  • Associate Professor, University of Illinois at Urbana-Champaign, Civil and Environmental Engineering, 2015 -- present
  • Assistant Professor, University of Illinois at Urbana-Champaign, Civil and Environmental Engineering, 2011 -- 2015
  • Assistant Professor, State University of New York at Stony Brook, Mechanical Engineering, 2007 -- 2011

For more information

Research Statement

Oscar Lopez-Pamies is interested in the mechanics and physics of heterogeneous materials with a particular emphasis on soft-matter systems. He focuses on the development of mathematical theories to describe, explain, and predict the macroscopic behavior, stability, and failure of these materials directly in terms of their microscopic behavior. Specific areas of interest include the mathematical modeling of the mechanical and the electromechanical response and failure of unfilled elastomers, filled elastomers, foams, and block copolymers. Other areas of recent focus include the development of numerical methods for nonlinear (elliptic and hyperbolic) partial differential equations.

Research Interests

  • Mechanics and Physics of Soft Solids; Geometric and Material Instabilities; Microstructures; Homogenization; Numerical Methods for Solving PDEs

Selected Articles in Journals

  • Kumar, A., Lopez-Pamies, O. 2016. On the two-potential constitutive modelling of rubber viscoelastic materials. Comptes Rendus Mecanique 344, 102-112.
  • Chi, H., Talischi, C., Lopez-Pamies, O., Paulino, G.H. 2016. A paradigm for higher-order polygonal elements in finite elasticity using a gradient correction scheme. Computer Methods in Applied Mechanics and Engineering 306, 216-251.
  • Lef￿e, V., Lopez-Pamies, O., 2015. The overall elastic dielectric properties of fiber-strengthened/weakened elastomers. Journal of Applied Mechanics 82, 111009-1 -- 111009-21.
  • Spinelli, S.A., Lef￿e, V., Lopez-Pamies, O. 2015., Dielectric elastomer composites: A general closed-form solution in the small-deformation limit. Journal of the Mechanics and Physics of Solids 83, 263-284
  • Goudarzi, T., Spring, D., Paulino, G.H., Lopez-Pamies, O., 2015. Filled elastomers: A theory of filler reinforcement based on hydrodynamic and interphasial effects. Journal of the Mechanics and Physics of Solids 80, 37-67.
  • Spinelli, S.A., Lopez-Pamies, O., 2015. Some simple explicit results for the elastic dielectric properties and stability of layered composites. International Journal of Engineering Science 88, 15-28.
  • Lef￿e, V., Ravi-Chandar, K., Lopez-Pamies, O. 2015. Cavitation in rubber: An elastic instability or a fracture phenomenon? International Journal of Fracture 192, 1-23.
  • Lef￿e, V., Lopez-Pamies, O., 2014. The overall elastic dielectric properties of a suspension of spherical particles in rubber: An exact explicit solution in the small-deformation limit. Journal of Applied Physics 116, 134106-1 -- 134106-11.
  • Lopez-Pamies, O., Goudarzi, T., Meddeb, A.B., Ounaies, Z., 2014. Extreme enhancement and reduction of the dielectric response of polymer nanoparticulate composites via interphasial charges. Applied Physics Letters 104, 242904-1 -- 242904-5.
  • Lopez-Pamies, O. 2014. Elastic dielectric composites: Theory and application to particle-filled ideal dielectrics. Journal of the Mechanics and Physics of Solids 64, 61-82.
  • Lopez-Pamies, O., Goudarzi, T., Danas, K. 2013. The nonlinear elastic response of suspensions of rigid inclusions in rubber: II -- A simple explicit approximation for finite-concentration suspensions. Journal of the Mechanics and Physics of Solids 61, 19-37.
  • Lopez-Pamies, O., Goudarzi, T., Nakamura, T. 2013. The nonlinear elastic response of suspensions of rigid inclusions in rubber: I -- An exact result for dilute suspensions. Journal of the Mechanics and Physics of Solids 61, 1-18.
  • Lopez-Pamies, O., Nakamura, T., Idiart, M.I. 2011. Cavitation in elastomeric solids: II -- Onset-of-cavitation surfaces for Neo-Hookean materials. Journal of the Mechanics and Physics of Solids 59, 1488-1505.
  • Lopez-Pamies, O., Idiart, M.I., Nakamura, T. 2011. Cavitation in elastomeric solids: I -- A defect-growth theory. Journal of the Mechanics and Physics of Solids 59, 1464-1487.
  • Lopez-Pamies, O. 2010. A new I1-based hyperelastic model for rubber elastic materials. Comptes Rendus Mecanique 338, 3-11.
  • Lopez-Pamies, O. 2010. An exact result for the macroscopic response of particle-reinforced Neo-Hookean solids. Journal of Applied Mechanics 77, 021016-1 -- 021016-5.
  • Lopez-Pamies, O. 2009. Onset of cavitation in compressible, isotropic, hyperelastic solids. Journal of Elasticity 94, 115-145.
  • Michel, J.C., Lopez-Pamies, O., Ponte Casta￿, P., Triantafyllidis, N. 2007. Microscopic and macroscopic instabilities in finitely strained porous elastomers. Journal of the Mechanics and Physics of Solids 55, 900-938.

Invited Lectures

  • Understanding and designing soft solids from the bottom up: Methods and applications
  • Towards a microscopic theory of macroscopic damage in elastomers
  • Iterative and variational methods for non-convex homogenization problems
  • Elastic dielectric composites: A microscopic field theory and applications
  • The nonlinear elastic response of suspensions of rigid inclusions in rubber
  • Cavitation in rubber: An elastic instability or a fracture phenomenon?
  • Cavitation instabilities in nonlinear elastic solids: a defect-growth formulation based on iterated homogenization
  • Response of elastomeric solids with pressurized cavities: from defects to closed-cell foams
  • Soft solids: Microscopic theories for their analysis and bottom-up design
  • Defects and Microstructures in Soft Solids

Magazine Articles

Teaching Honors

  • Teacher Ranked as Excellent, University of Illinois at Urbana-Champaign (Spring 2013)

Research Honors

  • Young Investigator Medal, Society of Engineering Science (2017)
  • Journal of Applied Mechanics Award, American Society of Mechanical Engineers (2014)
  • CEE Excellence Faculty Fellow, University of Illinois Urbana-Champaign (2012)
  • CAREER Award, National Science Foundation (2011)
  • Young Scientist Prize, European Solid Mechanics Conference (2009)
  • Thesis Award Finalist of ParisTech (top 9 among 514 theses) (2007)
  • Thesis Award, Ecole Polytechnique (2007)