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Publications OSCAR LOPEZ-PAMIES |
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Journal Articles J82.
Wijaya, I.P.A., Lopez-Pamies, O., Masud, A. 2023. A unified determinant-preserving formulation for compressible/incompressible finite viscoelasticity. Submitted. (pdf
file) J81.
Shrimali, B., Lopez-Pamies, O. 2023. The trousers fracture test for viscoelastic elastomers Journal of Applied Mechanics 90, 071010. (pdf
file) J80.
Shrimali, B., Lopez-Pamies, O. 2023. The delayed fracture test for viscoelastic elastomers. Submitted. (pdf
file) J79.
Shrimali, B., Lopez-Pamies, O. 2023. The “pure-shear” fracture test for viscoelastic elastomers and its revelation on Griffith fracture. Extreme Mechanics Letters 58, 101944. (pdf
file) J78.
Jia, Y., Lopez-Pamies, O., Zhang, X.S. 2023. Controlling the fracture response of structures via topology optimization: From delaying fracture nucleation to maximizing toughness. Journal of the Mechanics and Physics of Solids 173, 105227. (pdf
file) J77.
Ghosh, K., Lefèvre, V., Lopez-Pamies, O. 2023. The effective shear modulus of a random isotropic suspension of monodisperse liquid n-spheres: From the dilute limit to the percolation threshold. Soft Matter 19, 208–224. (pdf
file) J76.
Ghosh, K., Lefèvre, V., Lopez-Pamies, O. 2023. Homogenization of elastomers filled with liquid inclusions: The small-deformation limit. The Special Issue in Recognition of the 85th Birthday of Roger Fosdick. Journal of Elasticity. In press. (pdf
file) J75.
Lefèvre, V., Francfort, G.A., Lopez-Pamies, O. 2022. The curious case of 2D isotropic incompressible Neo-Hookean composites. The Special Issue in Recognition of the 90th Birthday of Millard Beatty. Journal of Elasticity 151, 177–186. (pdf
file) J74.
Lefèvre, V., Lopez-Pamies, O. 2022. The effective shear modulus of a random isotropic suspension of monodisperse rigid n-spheres: From the dilute limit to the percolation threshold. Extreme Mechanics Letters 55, 101818. (pdf
file) J73.
Kumar, A., Ravi-Chandar, K., Lopez-Pamies, O. 2022. The revisited phase-field approach to brittle fracture: Application to indentation and notch problems. The Special Issue on “Phase-Field Approaches to Fracture in the 3rd Millennium”. International Journal of Fracture 237, 83–100. (pdf
file) J72.
Ghosh, K., Lopez-Pamies, O. 2022. Elastomers filled with liquid inclusions: Theory, numerical implementation, and some basic results. Journal of the Mechanics and Physics of Solids 166, 104930. (pdf
file) J71.
Shrimali, B., Ghosh, K., Lopez-Pamies, O. 2021. The nonlinear viscoelastic response of suspensions of vacuous bubbles in rubber: I — Gaussian rubber with constant viscosity. Journal of Elasticity. In press. (pdf
file) J70.
Francfort, G.A., Gloria, A., Lopez-Pamies, O. 2021. Enhancement of elasto-dielectrics by homogenization of active charges. Journal de Mathématiques Pures et Appliquées 156, 392–419. (pdf
file) J69.
Ghosh, K., Shrimali, B., Kumar, A., Lopez-Pamies, O. 2021. The nonlinear viscoelastic response of suspensions of rigid inclusions in rubber: I — Gaussian rubber with constant viscosity. Journal of the Mechanics and Physics of Solids 154, 104544. (pdf
file) J68.
Shrimali, B., Pezzulla, M., Poincloux, S., Reis, P.M., Lopez-Pamies, O. 2021. The remarkable bending properties of perforated plates. Journal of the Mechanics and Physics of Solids 154, 104514. (pdf
file) J67.
Kumar, A., Lopez-Pamies, O. 2021. The poker-chip experiments of Gent and Lindley (1959) explained. Journal of the Mechanics and Physics of Solids 150, 104359. (pdf file) J66.
Ghosh, K., Lopez-Pamies, O. 2021. On the two-potential constitutive modeling of dielectric elastomers. Meccanica 56, 1505–1521. (pdf file) J65.
Shrimali, B., Parnell, W.J., Lopez-Pamies, O. 2020. A simple explicit model constructed from a homogenization solution for the large-strain mechanical response of elastomeric syntactic foams. International Journal of Non-Linear Mechanics 126, 103548. (pdf file) J64.
Kumar, A., Bourdin, B., Francfort, G.A., Lopez-Pamies, O. 2020. Revisiting nucleation in the phase-field approach to brittle fracture. Journal of the Mechanics and Physics of Solids 142, 104027. (pdf file) J63.
Kumar, A., Lopez-Pamies, O. 2020. The phase-field approach to self-healable fracture of elastomers: A model accounting for fracture nucleation at large, with application to a class of conspicuous experiments. Theoretical and Applied Fracture Mechanics 107, 102550. (pdf file) J62.
Lefèvre, V., Danas, K., Lopez-Pamies, O. 2020. Two families of explicit models constructed from a homogenization solution for the magnetoelastic response of MREs containing iron and ferrofluid particles. International Journal of Non-Linear Mechanics 119, 103362. (pdf file) J61.
Leonard, M., Wang, N., Lopez-Pamies, O., Nakamura, T. 2020. The nonlinear elastic response of filled elastomers: Experiments vs. theory for the basic case of particulate fillers of micrometer size. Journal of the Mechanics and Physics of Solids 135, 103781. (pdf file) J60.
Ghosh, K., Guo, J., Lopez-Pamies, O. 2019. Homogenization of time-dependent dielectric composites containing space charges, with applications to polymer nanoparticulate composites. International Journal of Non-Linear Mechanics 116, 155–166. (pdf file) J59.
Lefèvre, V., Garnica, A., Lopez-Pamies, O. 2019. A WENO finite-difference scheme for a new class of Hamilton-Jacobi equations in nonlinear solid mechanics. Computer Methods in Applied Mechanics and Engineering 349, 17–44. (pdf file) J58.
Shrimali, B., Lefèvre, V., Lopez-Pamies, O. 2019. A simple explicit homogenization solution for the macroscopic elastic response of isotropic porous elastomers. Journal of the Mechanics and Physics of Solids 122, 364–380. (pdf file) J57.
Meddeb, A.B., Tighe, T., Ounaies, Z., Lopez-Pamies, O. 2019. Extreme enhancement of the nonlinear elastic response of elastomer nanoparticulate composites via interphases. Composites Part B 156, 166–173. (pdf file) J56.
Francfort, G.A., Giacomini, A., Lopez-Pamies, O. 2019. Fracture with healing: A first step towards a new view of cavitation. Analysis and PDE 12, 417–447. (pdf file) J55.
Kumar, A., Ravi-Chandar, K., Lopez-Pamies, O. 2018. The configurational-forces view of fracture and healing in elastomers as a phase transition. International Journal of Fracture 213, 1–16. (pdf file) J54.
Poulain, X., Lopez-Pamies, O., Ravi-Chandar, K. 2018. Damage in elastomers: Healing of internally nucleated cavities and micro-cracks. Soft Matter 14, 4633–4640. (pdf file) J53.
Kumar, A., Francfort, G.A., Lopez-Pamies, O. 2018. Fracture and healing of elastomers: A phase-transition theory and numerical implementation. Journal of the Mechanics and Physics of Solids 112, 523–551. (pdf file) J52.
Lefèvre, V., Danas, K., Lopez-Pamies, O. 2017. A general result for the magnetoelastic response of isotropic suspensions of iron and ferrofluid particles in rubber, with applications to spherical and cylindrical specimens. Journal of the Mechanics and Physics of Solids 107, 343–364. (pdf file) J51.
Lefèvre, V., Lopez-Pamies, O. 2017. Homogenization of elastic dielectric composites with rapidly oscillating passive and active source terms. SIAM Journal on Applied Mathematics 77, 1962–1988. (pdf file) J50.
Poulain, X., Lefèvre, V., Lopez-Pamies, O., Ravi-Chandar, K. 2017. Damage in elastomers: Nucleation and growth of cavities, micro-cracks, and macro-cracks. International Journal of Fracture 205, 1–21. (pdf file) J49.
Kumar, A., Aranda-Iglesias, D., Lopez-Pamies, O. 2017. Some remarks on the effects of inertia and viscous dissipation in the onset of
cavitation in rubber. Journal of Elasticity 126, 201–213. (pdf file) J48.
Lefèvre, V., Lopez-Pamies, O. 2017. Nonlinear electroelastic deformations of dielectric elastomer composites: II — Non-Gaussian elastic dielectrics. Journal of the Mechanics and Physics of Solids 99, 438–470. (pdf file) J47.
Lefèvre, V., Lopez-Pamies, O. 2017. Nonlinear electroelastic deformations of dielectric elastomer composites: I — Ideal elastic dielectrics. Journal of the Mechanics and Physics of Solids 99, 409–437. (pdf file) J46.
Kumar, A., Lopez-Pamies, O. 2016. On the two-potential constitutive modelling of rubber viscoelastic materials. Comptes Rendus Mecanique 344, 102–112. (pdf file) J45.
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. (pdf file) J44.
Chi, H., Lopez-Pamies, O., Paulino, G.H. 2016. A variational formulation with rigid-body constraints for finite elasticity: Theory, finite element implementation, and applications. Computational Mechanics 57, 325–338. (pdf file) J43.
Lefèvre, V., Lopez-Pamies, O. 2015. The overall elastic dielectric properties of fiber-strengthened/weakened elastomers. Journal of Applied Mechanics 82, 111009. (pdf file) J42.
Spinelli, S.A., Lefèvre, 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. (pdf file) J41.
Goudarzi, T., Spring, D.W., 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. (pdf file) J40.
Chi, H., Talischi, C., Lopez-Pamies, O., Paulino, G.H. 2015. Polygonal finite elements for finite elasticity. International Journal for Numerical Methods in Engineering 101, 305–328. (pdf file) J39.
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. (pdf file) J38.
Lefèvre, 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. (pdf file) J37.
Lefèvre, 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. (pdf file) J36.
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. (pdf file)
J35.
Spinelli, S.A., Lopez-Pamies, O. 2014. A general closed-form solution for the overall response of piezoelectric composites with periodic and random particulate microstructures. International Journal of Solids and Structures 51, 2979–2989. (pdf file) J34.
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. (pdf file) J33.
Goudarzi, T., Lopez-Pamies, O. 2013. Numerical modeling of the nonlinear elastic response
of filled elastomers via composite-sphere assemblages. Journal of Applied
Mechanics 80, 050906. (pdf file) J32. 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. (pdf file) J31. 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. (pdf file) J30. Lopez-Pamies,
O., Ponte Castañeda, P., Idiart, M.I. 2012. Effects of internal pore pressure on closed-cell
elastomeric foams. International Journal of Solids and Structures 49, 2793–2798. (pdf file) J29. Bertoldi, K.,
Lopez-Pamies, O. 2012. Some remarks
on the effect of interphases on the mechanical response and stability of
fiber-reinforced elastomers. The Special Issue in Honor of James R.
Rice. Journal of Applied Mechanics 79, 031023. (pdf file) J28. Idiart, M.I.,
Lopez-Pamies, O. 2012. On the
overall response of elastomeric solids with pressurized cavities. The Special
Issue on “Recent Advances in Micromechanics of Materials” honoring Andre
Zaoui. Comptes Rendus Mecanique
340, 359–368. (pdf file) J27. Nakamura, T.,
Lopez-Pamies, O. 2012. A finite
element approach to study cavitation instabilities in nonlinear elastic
solids under general loading conditions. The Special Issue in Honor of Ray W.
Ogden. International Journal of
Non-Linear Mechanics 47, 331–340. (pdf file) J26. Lopez-Pamies, O., Moraleda, J., Segurado, J., Llorca,
J. 2012. On the extremal properties of Hashin's hollow cylinder
assemblage in nonlinear elasticity. Journal
of Elasticity 107, 1–10. (pdf
file) J25. 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. (pdf
file) J24. 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. (pdf file) J23. Lopez-Pamies,
O., Idiart, M.I., Li, Z. 2011. On
microstructure evolution in fiber-reinforced elastomers and implications for
their mechanical response and stability. Journal
of Engineering Materials and Technology 133, 011007. (pdf file) J22. Michel, J.C.,
Lopez-Pamies, O., Ponte Castañeda, P., Triantafyllidis, N. 2010. Microscopic and macroscopic
instabilities in finitely strained fiber-reinforced elastomers. Journal of the Mechanics and Physics of
Solids 58, 1776–1803. (pdf file) J21.
Lopez-Pamies, O., Idiart, M.I. 2010. Fiber-reinforced hyperelastic solids:
A realizable homogenization constitutive theory. The Special Issue on
“Mechanics of Fibre-Reinforced Materials: Theory and Applications”. Journal of Engineering Mathematics 68,
57–83. (pdf
file) J20.
Lopez-Pamies,
O. 2010. A new I1-based
hyperelastic model for rubber elastic materials. Comptes Rendus Mecanique 338, 3–11. (pdf file) J19.
Racherla, V., Lopez-Pamies, O., Ponte Castañeda, P. 2010. Macroscopic response and onset of
instabilities in lamellar nanostructured elastomers with “oriented” and
“unoriented” polydomain microstructures. Mechanics
of Materials 42, 451–468. (pdf file) J18.
Lopez-Pamies,
O. 2010. An exact result for the macroscopic response of
particle-reinforced Neo-Hookean solids. Journal
of Applied Mechanics 77, 021016. (pdf file) J17.
Lopez-Pamies, O., Idiart, M.I. 2009. An exact result for the macroscopic
behavior of porous Neo-Hookean solids. Journal
of Elasticity 95, 99–105. (pdf file) J16.
Lopez-Pamies,
O. 2009. Onset of cavitation in compressible, isotropic, hyperelastic
solids. Journal of Elasticity 94,
115–145. (pdf
file) J15.
Agoras, M., Lopez-Pamies, O., Ponte Castañeda, P. 2009. Onset of macroscopic instabilities in
fiber-reinforced nonlinearly elastic materials. Journal of the Mechanics and Physics of Solids 57, 1828–1850. (pdf file) J14.
Agoras, M., Lopez-Pamies, O., Ponte Castañeda, P. 2009. A general hyperelastic model for
incompressible fiber-reinforced elastomers. Journal of the Mechanics and Physics of Solids 57, 268–286. (pdf file) J13.
Lopez-Pamies, O., Ponte Castañeda, P. 2009. Microstructure evolution in
hyperelastic laminates and implications for overall behavior and macroscopic
stability. The Special Issue in Honor of Graeme W. Milton. Mechanics of Materials 41, 364–374. (pdf file) J12.
Lopez-Pamies, O., Garcia, R., Chabert, E., Cavaillé,
J.-Y., Ponte Castañeda, P. 2008. Multiscale
modeling of oriented thermoplastic elastomers with lamellar morphology. Journal of the Mechanics and Physics of
Solids 56, 3206–3223. (pdf file) J11.
Lopez-Pamies, O., Ponte Castañeda, P. 2007. Homogenization-based constitutive
models for porous elastomers and implications for macroscopic instabilities:
II — Results. Journal of the Mechanics
and Physics of Solids 55, 1702–1728. (pdf file) J10.
Lopez-Pamies, O., Ponte Castañeda, P. 2007. Homogenization-based constitutive
models for porous elastomers and implications for macroscopic instabilities:
I — Analysis. Journal of the Mechanics
and Physics of Solids 55, 1677–1701. (pdf file) J9.
Brun, M., Lopez-Pamies, O., Ponte Castañeda, P. 2007. Homogenization estimates for
fiber-reinforced elastomers with periodic microstructures. International Journal of Solids and
Structures 44, 5953–5979. (pdf file) J8.
Michel, J.C., Lopez-Pamies, O., Ponte Castañeda, P.,
Triantafyllidis, N. 2007. Microscopic
and macroscopic instabilities in finitely strained porous elastomers. Journal of the Mechanics and Physics of
Solids 55, 900–938. (pdf file) J7.
Lopez-Pamies, O., Ponte Castañeda, P. 2006. On the overall behavior,
microstructure evolution, and macroscopic stability in reinforced rubbers at
large deformations: II — Application to cylindrical fibers. Journal of the Mechanics and Physics of
Solids 54, 831–863. (pdf file) J6.
Lopez-Pamies, O., Ponte Castañeda, P. 2006. On the overall behavior,
microstructure evolution, and macroscopic stability in reinforced rubbers at
large deformations: I — Theory. Journal
of the Mechanics and Physics of Solids 54, 807–830. (pdf file) J5.
Khan, A.S.,
Lopez-Pamies, O., Kazmi, R. 2006. Thermo-mechanical large
deformation response and constitutive modeling of viscoelastic polymers over
a wide range of strain rates and temperatures. International Journal of Plasticity 22, 581–601. (pdf file) J4.
Lopez-Pamies, O., Ponte Castañeda, P. 2004. Second-order estimates for the
macroscopic response and loss of ellipticity of porous rubbers at large
deformations. Journal of Elasticity 76,
247–287. (pdf
file) J3.
Lopez-Pamies, O., Ponte Castañeda, P. 2004. Second-order homogenization estimates
incorporating field fluctuations in finite elasticity. Mathematics and Mechanics of Solids 9, 243–270. (pdf file) J2.
Lopez-Pamies, O., Ponte Castañeda, P. 2004. Second-order estimates for the
large-deformation response of particle-reinforced rubbers. Comptes Rendus Mecanique 331, 1–8. (pdf file) J1. Khan, A.S., Lopez-Pamies, O. 2002. Time and temperature dependent response and relaxation of a soft polymer. International Journal of Plasticity 18, 1359–1372. (pdf file) |
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Articles in Conference
Proceedings and Newsletters N1.
Lopez-Pamies, O.
2014. Cavitation in rubber: The role of elasticity. EUROMECH Newsletter 45. (pdf
file) P5.
Meddeb, A., Ounaies, Z., Lopez-Pamies, O. 2019. Interfacial effects on the electrical behavior of elastomer nanoparticulate composites. Proceedings of SPIE 10968,
1-9. (pdf
file) P4.
Lopez-Pamies, O.,
Nakamura, T. 2010. Analytical
and numerical solutions for the onset of cavitation in rubber under unequal
stresses. Proceedings of the 2010 M&M International Symposium for Young
Researchers, California Institute of Technology, P3.
Idiart, M.I.,
Lopez-Pamies, O. 2009. A realizable constitutive model for
fiber-reinforced Neo-Hookean solids. XVIII Congreso sobre Métodos Numéricos y
sus Aplicaciones ENIEF 2009, Tandil, Argentina. (pdf file) P2.
Lopez-Pamies, O.,
Khan, A.S. 2002. Three-dimensional,
finite deformation, constitutive model for predominantly viscoelastic soft
polymers. Proceedings of Plasticity
’02: The Ninth International Symposium on Plasticity and Its Current
Applications , Aruba, 144-146. P1. Lopez-Pamies, O., Khan, A.S. 2000. Relaxation and mechanical response to strain rate and temperature of the polymer Adiprene-L100. Proceedings of Plasticity ’00: The Eighth International Symposium on Plasticity and Its Current Applications , Whistler, Canada, 588a-588c. |
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Theses T1. Lopez-Pamies, O. 2006. On the Effective Behavior, Microstructure Evolution, and Macroscopic Stability of Elastomeric Composites. University of Pennsylvania. (pdf file) |
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Last modified in Mar 2023 |