Publications

Journal Publications

2026

  1. A Guide to Fully Characterize the Fracture Properties of Cementitious Materials from Simple Experiments
    S. Saha, B.J. Moore, B. Manaugh, J.R. Roesler, and O. Lopez-Pamies
    Submitted, 2026
  2. Breaking Four-Point and Three-Point Bending Tests
    S. Saha, J.R. Roesler, and O. Lopez-Pamies
    International Journal of Solids and Structures 339, 114169, 2026
  3. Nine circles of elastic brittle fracture: A series of challenge problems to assess fracture models
    F. Kamarei, B. Zeng, J.E. Dolbow, and O. Lopez-Pamies
    Computer Methods in Applied Mechanics and Engineering 448, 118449, 2026
  4. The single edge notch fracture test for viscoelastic elastomers
    F. Kamarei, F. Sozio, and O. Lopez-Pamies
    Journal of Theoretical, Computational and Applied Mechanics, 16652, 2026

2025

  1. When and where do large cracks grow? Griffith energy competition constrained by material strength
    O. Lopez-Pamies and F. Kamarei
    Extreme Mechanics Letters 81, 102417, 2025
  2. Nucleation and propagation of fracture in viscoelastic elastomers: A complete phase-field theory
    F. Kamarei, E. Breedlove, and O. Lopez-Pamies
    Computer Methods in Applied Mechanics and Engineering 446, 118337, 2025
  3. Validating Griffith fracture propagation in the phase-field approach to fracture: The case of Mode III by means of the trousers test
    F. Kamarei, E. Breedlove, and O. Lopez-Pamies
    International Journal of Fracture 249, 51, 2025
  4. The nonlinear elastic deformation of liquid inclusions embedded in elastomers
    O. Moronkeji, F. Sozio, K. Ghosh, A. Meddeb, A. Farahani, Z. Ounaies, I. Chasiotis, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 200, 106126, 2025
  5. Nucleation of fracture: The first-octant evidence against classical variational phase-field models
    F. Kamarei, J.E. Dolbow, and O. Lopez-Pamies
    Journal of Applied Mechanics 92, 014502, 2025
  6. Classical variational phase-field models cannot predict fracture nucleation
    O. Lopez-Pamies, J.E. Dolbow, G.A. Francfort, and C.J. Larsen
    Computer Methods in Applied Mechanics and Engineering 433, 117520, 2025
  7. Liquid filled elastomers: From linearization to elastic enhancement
    J. Casado Díaz, G.A. Francfort, O. Lopez-Pamies, and M.G. Mora
    Archive for Rational Mechanics and Analysis 249, 5, 2025

2024

  1. Filled elastomers sliding over smooth obstacles: Experiments and modeling in large deformations
    M. Lorenzo, P. Le Tallec, O. Lopez-Pamies, and P. Bussetta
    Journal of the Mechanics and Physics of Solids 193, 105899, 2024
  2. A Griffith description of fracture for non-monotonic loading with application to fatigue
    S. Saha, J.E. Dolbow, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 191, 105754, 2024
  3. Cavitation in elastomers: A review of the evidence against elasticity
    E. Breedlove, C. Chen, D. Lindeman, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 188, 105678, 2024
  4. The poker-chip experiments of synthetic elastomers explained
    F. Kamarei, A. Kumar, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 188, 105683, 2024
  5. A variational formulation of Griffith phase-field fracture with material strength
    C.J. Larsen, J.E. Dolbow, and O. Lopez-Pamies
    International Journal of Fracture 247, 319–327, 2024
  6. Abaqus implementation of a large family of finite viscoelasticity models
    V. Lefèvre, F. Sozio, and O. Lopez-Pamies
    Finite Elements in Analysis and Design 232, 104114, 2024
  7. The nonlinear elastic response of bicontinuous rubber blends
    F. Sozio, F. Lallet, A. Perriot, and O. Lopez-Pamies
    International Journal of Solids and Structures 290, 112660, 2024
  8. A model-based simulation framework for coupled acoustics, elastodynamics, and damage with application to nano-pulse lithotripsy
    Y. Liu, P. Zhong, O. Lopez-Pamies, and J.E. Dolbow
    International Journal of Solids and Structures 289, 112626, 2024
  9. The strength of the Brazilian fracture test
    A. Kumar, Y. Liu, J.E. Dolbow, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 182, 105473, 2024

2023

  1. A unified determinant-preserving formulation for compressible/incompressible finite viscoelasticity
    I.P.A. Wijaya, O. Lopez-Pamies, and A. Masud
    Journal of the Mechanics and Physics of Solids 177, 105312, 2023
  2. The trousers fracture test for viscoelastic elastomers
    B. Shrimali and O. Lopez-Pamies
    Journal of Applied Mechanics 90, 071010, 2023
  3. The delayed fracture test for viscoelastic elastomers
    B. Shrimali and O. Lopez-Pamies
    International Journal of Fracture 242, 23–38, 2023
  4. The “pure-shear” fracture test for viscoelastic elastomers and its revelation on Griffith fracture
    B. Shrimali and O. Lopez-Pamies
    Extreme Mechanics Letters 58, 101944, 2023
  5. Controlling the fracture response of structures via topology optimization: From delaying fracture nucleation to maximizing toughness
    Y. Jia, O. Lopez-Pamies, and X.S. Zhang
    Journal of the Mechanics and Physics of Solids 173, 105227, 2023
  6. The effective shear modulus of a random isotropic suspension of monodisperse liquid n-spheres: From the dilute limit to the percolation threshold
    K. Ghosh, V. Lefèvre, and O. Lopez-Pamies
    Soft Matter 19, 208–224, 2023
  7. Homogenization of elastomers filled with liquid inclusions: The small-deformation limit
    K. Ghosh, V. Lefèvre, and O. Lopez-Pamies
    Journal of Elasticity 154, 235–253, 2023
  8. The nonlinear viscoelastic response of suspensions of vacuous bubbles in rubber: I – Gaussian rubber with constant viscosity
    B. Shrimali, K. Ghosh, and O. Lopez-Pamies
    Journal of Elasticity 153, 479–508, 2023

2022

  1. The curious case of 2D isotropic incompressible Neo-Hookean composites
    V. Lefèvre, G.A. Francfort, and O. Lopez-Pamies
    Journal of Elasticity 151, 177–186, 2022
  2. The effective shear modulus of a random isotropic suspension of monodisperse rigid n-spheres: From the dilute limit to the percolation threshold
    V. Lefèvre and O. Lopez-Pamies
    Extreme Mechanics Letters 55, 101818, 2022
  3. The revisited phase-field approach to brittle fracture: Application to indentation and notch problems
    A. Kumar, K. Ravi-Chandar, and O. Lopez-Pamies
    International Journal of Fracture 237, 83–100, 2022
  4. Elastomers filled with liquid inclusions: Theory, numerical implementation, and some basic results
    K. Ghosh and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 166, 104930, 2022

2021

  1. Enhancement of elasto-dielectrics by homogenization of active charges
    G.A. Francfort, A. Gloria, and O. Lopez-Pamies
    Journal de Mathématiques Pures et Appliquées 156, 392–419, 2021
  2. The nonlinear viscoelastic response of suspensions of rigid inclusions in rubber: I – Gaussian rubber with constant viscosity
    K. Ghosh, B. Shrimali, A. Kumar, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 154, 104544, 2021
  3. The remarkable bending properties of perforated plates
    B. Shrimali, M. Pezzulla, S. Poincloux, P.M. Reis, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 154, 104514, 2021
  4. The poker-chip experiments of Gent and Lindley (1959) explained
    A. Kumar and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 150, 104359, 2021
  5. On the two-potential constitutive modeling of dielectric elastomers
    K. Ghosh and O. Lopez-Pamies
    Meccanica 56, 1505–1521, 2021

2020

  1. A simple explicit model constructed from a homogenization solution for the large-strain mechanical response of elastomeric syntactic foams
    B. Shrimali, W.J. Parnell, and O. Lopez-Pamies
    International Journal of Non-Linear Mechanics 126, 103548, 2020
  2. Revisiting nucleation in the phase-field approach to brittle fracture
    A. Kumar, B. Bourdin, G.A. Francfort, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 142, 104027, 2020
  3. 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
    A. Kumar and O. Lopez-Pamies
    Theoretical and Applied Fracture Mechanics 107, 102550, 2020
  4. Two families of explicit models constructed from a homogenization solution for the magnetoelastic response of MREs containing iron and ferrofluid particles
    V. Lefèvre, K. Danas, and O. Lopez-Pamies
    International Journal of Non-Linear Mechanics 119, 103362, 2020
  5. The nonlinear elastic response of filled elastomers: Experiments vs. theory for the basic case of particulate fillers of micrometer size
    M. Leonard, N. Wang, O. Lopez-Pamies, and T. Nakamura
    Journal of the Mechanics and Physics of Solids 135, 103781, 2020

2019

  1. Homogenization of time-dependent dielectric composites containing space charges, with applications to polymer nanoparticulate composites
    K. Ghosh, J. Guo, and O. Lopez-Pamies
    International Journal of Non-Linear Mechanics 116, 155–166, 2019
  2. A WENO finite-difference scheme for a new class of Hamilton-Jacobi equations in nonlinear solid mechanics
    V. Lefèvre, A. Garnica, and O. Lopez-Pamies
    Computer Methods in Applied Mechanics and Engineering 349, 17–44, 2019
  3. A simple explicit homogenization solution for the macroscopic elastic response of isotropic porous elastomers
    B. Shrimali, V. Lefèvre, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 122, 364–380, 2019
  4. Extreme enhancement of the nonlinear elastic response of elastomer nanoparticulate composites via interphases
    A.B. Meddeb, T. Tighe, Z. Ounaies, and O. Lopez-Pamies
    Composites Part B 156, 166–173, 2019
  5. Fracture with healing: A first step towards a new view of cavitation
    G.A. Francfort, A. Giacomini, and O. Lopez-Pamies
    Analysis and PDE 12, 417–447, 2019

2018

  1. The configurational-forces view of fracture and healing in elastomers as a phase transition
    A. Kumar, K. Ravi-Chandar, and O. Lopez-Pamies
    International Journal of Fracture 213, 1–16, 2018
  2. Damage in elastomers: Healing of internally nucleated cavities and micro-cracks
    X. Poulain, O. Lopez-Pamies, and K. Ravi-Chandar
    Soft Matter 14, 4633–4640, 2018
  3. Fracture and healing of elastomers: A phase-transition theory and numerical implementation
    A. Kumar, G.A. Francfort, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 112, 523–551, 2018

2017

  1. A general result for the magnetoelastic response of isotropic suspensions of iron and ferrofluid particles in rubber, with applications to spherical and cylindrical specimens
    V. Lefèvre, K. Danas, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 107, 343–364, 2017
  2. Homogenization of elastic dielectric composites with rapidly oscillating passive and active source terms
    V. Lefèvre and O. Lopez-Pamies
    SIAM Journal on Applied Mathematics 77, 1962–1988, 2017
  3. Damage in elastomers: Nucleation and growth of cavities, micro-cracks, and macro-cracks
    X. Poulain, V. Lefèvre, O. Lopez-Pamies, and K. Ravi-Chandar
    International Journal of Fracture 205, 1–21, 2017
  4. Some remarks on the effects of inertia and viscous dissipation in the onset of cavitation in rubber
    A. Kumar, D. Aranda-Iglesias, and O. Lopez-Pamies
    Journal of Elasticity 126, 201–213, 2017
  5. Nonlinear electroelastic deformations of dielectric elastomer composites: II – Non-Gaussian elastic dielectrics
    V. Lefèvre and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 99, 438–470, 2017
  6. Nonlinear electroelastic deformations of dielectric elastomer composites: I – Ideal elastic dielectrics
    V. Lefèvre and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 99, 409–437, 2017

2016

  1. On the two-potential constitutive modeling of rubber viscoelastic materials
    A. Kumar and O. Lopez-Pamies
    Comptes Rendus Mecanique 344, 102–112, 2016
  2. A paradigm for higher-order polygonal elements in finite elasticity using a gradient correction scheme
    H. Chi, C. Talischi, O. Lopez-Pamies, and G.H. Paulino
    Computer Methods in Applied Mechanics and Engineering 306, 216–251, 2016
  3. A variational formulation with rigid-body constraints for finite elasticity: Theory, finite element implementation, and applications
    H. Chi, O. Lopez-Pamies, and G.H. Paulino
    Computational Mechanics 57, 325–338, 2016

2015

  1. The overall elastic dielectric properties of fiber-strengthened/weakened elastomers
    V. Lefèvre and O. Lopez-Pamies
    Journal of Applied Mechanics 82, 111009, 2015
  2. Dielectric elastomer composites: A general closed-form solution in the small-deformation limit
    S.A. Spinelli, V. Lefèvre, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 83, 263–284, 2015
  3. Filled elastomers: A theory of filler reinforcement based on hydrodynamic and interphasial effects
    T. Goudarzi, D.W. Spring, G.H. Paulino, and O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 80, 37–67, 2015
  4. Polygonal finite elements for finite elasticity
    H. Chi, C. Talischi, O. Lopez-Pamies, and G.H. Paulino
    International Journal for Numerical Methods in Engineering 101, 305–328, 2015
  5. Some simple explicit results for the elastic dielectric properties and stability of layered composites
    S.A. Spinelli and O. Lopez-Pamies
    International Journal of Engineering Science 88, 15–28, 2015
  6. Cavitation in rubber: An elastic instability or a fracture phenomenon?
    V. Lefèvre, K. Ravi-Chandar, and O. Lopez-Pamies
    International Journal of Fracture 192, 1–23, 2015

2014

  1. The overall elastic dielectric properties of a suspension of spherical particles in rubber: An exact explicit solution in the small-deformation limit
    V. Lefèvre and O. Lopez-Pamies
    Journal of Applied Physics 116, 134106, 2014
  2. Extreme enhancement and reduction of the dielectric response of polymer nanoparticulate composites via interphasial charges
    O. Lopez-Pamies, T. Goudarzi, A.B. Meddeb, and Z. Ounaies
    Applied Physics Letters 104, 242904, 2014
  3. A general closed-form solution for the overall response of piezoelectric composites with periodic and random particulate microstructures
    S.A. Spinelli and O. Lopez-Pamies
    International Journal of Solids and Structures 51, 2979–2989, 2014
  4. Elastic dielectric composites: Theory and application to particle-filled ideal dielectrics
    O. Lopez-Pamies
    Journal of the Mechanics and Physics of Solids 64, 61–82, 2014

2013

  1. Numerical modeling of the nonlinear elastic response of filled elastomers via composite-sphere assemblages
    T. Goudarzi and O. Lopez-Pamies
    Journal of Applied Mechanics 80, 050906, 2013
  2. The nonlinear elastic response of suspensions of rigid inclusions in rubber: II – A simple explicit approximation for finite-concentration suspensions
    O. Lopez-Pamies, T. Goudarzi, and K. Danas
    Journal of the Mechanics and Physics of Solids 61, 19–37, 2013
  3. The nonlinear elastic response of suspensions of rigid inclusions in rubber: I – An exact result for dilute suspensions
    O. Lopez-Pamies, T. Goudarzi, and T. Nakamura
    Journal of the Mechanics and Physics of Solids 61, 1–18, 2013

2012

  1. Effects of internal pore pressure on closed-cell elastomeric foams
    O. Lopez-Pamies, P. Ponte Castañeda, and M.I. Idiart
    International Journal of Solids and Structures 49, 2793–2798, 2012
  2. Some remarks on the effect of interphases on the mechanical response and stability of fiber-reinforced elastomers
    K. Bertoldi and O. Lopez-Pamies
    Journal of Applied Mechanics 79, 031023, 2012
  3. On the overall response of elastomeric solids with pressurized cavities
    M.I. Idiart and O. Lopez-Pamies
    Comptes Rendus Mecanique 340, 359–368, 2012
  4. A finite element approach to study cavitation instabilities in nonlinear elastic solids under general loading conditions
    T. Nakamura and O. Lopez-Pamies
    International Journal of Non-Linear Mechanics 47, 331–340, 2012
  5. On the extremal properties of Hashin’s hollow cylinder assemblage in nonlinear elasticity
    O. Lopez-Pamies, J. Moraleda, J. Segurado, and J. Llorca
    Journal of Elasticity 107, 1–10, 2012

2011

  1. Cavitation in elastomeric solids: II – Onset-of-cavitation surfaces for Neo-Hookean materials
    O. Lopez-Pamies, T. Nakamura, and M.I. Idiart
    Journal of the Mechanics and Physics of Solids 59, 1488–1505, 2011
  2. Cavitation in elastomeric solids: I – A defect-growth theory
    O. Lopez-Pamies, M.I. Idiart, and T. Nakamura
    Journal of the Mechanics and Physics of Solids 59, 1464–1487, 2011
  3. On microstructure evolution in fiber-reinforced elastomers and implications for their mechanical response and stability
    O. Lopez-Pamies, M.I. Idiart, and Z. Li
    Journal of Engineering Materials and Technology 133, 011007, 2011

2010

  1. Microscopic and macroscopic instabilities in finitely strained fiber-reinforced elastomers
    J.C. Michel, O. Lopez-Pamies, P. Ponte Castañeda, and N. Triantafyllidis
    Journal of the Mechanics and Physics of Solids 58, 1776–1803, 2010
  2. Fiber-reinforced hyperelastic solids: A realizable homogenization constitutive theory
    O. Lopez-Pamies and M.I. Idiart
    Journal of Engineering Mathematics 68, 57–83, 2010
  3. A new I_1-based hyperelastic model for rubber elastic materials
    O. Lopez-Pamies
    Comptes Rendus Mecanique 338, 3–11, 2010
  4. Macroscopic response and onset of instabilities in lamellar nanostructured elastomers with “oriented” and “unoriented” polydomain microstructures
    V. Racherla, O. Lopez-Pamies, and P. Ponte Castañeda
    Mechanics of Materials 42, 451–468, 2010
  5. An exact result for the macroscopic response of particle-reinforced Neo-Hookean solids
    O. Lopez-Pamies
    Journal of Applied Mechanics 77, 021016, 2010

2009

  1. An exact result for the macroscopic behavior of porous Neo-Hookean solids
    O. Lopez-Pamies and M.I. Idiart
    Journal of Elasticity 95, 99–105, 2009
  2. Onset of cavitation in compressible, isotropic, hyperelastic solids
    O. Lopez-Pamies
    Journal of Elasticity 94, 115–145, 2009
  3. Onset of macroscopic instabilities in fiber-reinforced nonlinearly elastic materials
    M. Agoras, O. Lopez-Pamies, and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 57, 1828–1850, 2009
  4. A general hyperelastic model for incompressible fiber-reinforced elastomers
    M. Agoras, O. Lopez-Pamies, and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 57, 268–286, 2009
  5. Microstructure evolution in hyperelastic laminates and implications for overall behavior and macroscopic stability
    O. Lopez-Pamies and P. Ponte Castañeda
    Mechanics of Materials 41, 364–374, 2009

2008

  1. Multiscale modeling of oriented thermoplastic elastomers with lamellar morphology
    O. Lopez-Pamies, R. Garcia, E. Chabert, J.-Y. Cavaillé, and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 56, 3206–3223, 2008

2007

  1. Homogenization-based constitutive models for porous elastomers and implications for macroscopic instabilities: II – Results
    O. Lopez-Pamies and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 55, 1702–1728, 2007
  2. Homogenization-based constitutive models for porous elastomers and implications for macroscopic instabilities: I – Analysis
    O. Lopez-Pamies and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 55, 1677–1701, 2007
  3. Homogenization estimates for fiber-reinforced elastomers with periodic microstructures
    M. Brun, O. Lopez-Pamies, and P. Ponte Castañeda
    International Journal of Solids and Structures 44, 5953–5979, 2007
  4. Microscopic and macroscopic instabilities in finitely strained porous elastomers
    J.C. Michel, O. Lopez-Pamies, P. Ponte Castañeda, and N. Triantafyllidis
    Journal of the Mechanics and Physics of Solids 55, 900–938, 2007

2006

  1. On the overall behavior, microstructure evolution, and macroscopic stability in reinforced rubbers at large deformations: II – Application to cylindrical fibers
    O. Lopez-Pamies and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 54, 831–863, 2006
  2. On the overall behavior, microstructure evolution, and macroscopic stability in reinforced rubbers at large deformations: I – Theory
    O. Lopez-Pamies and P. Ponte Castañeda
    Journal of the Mechanics and Physics of Solids 54, 807–830, 2006
  3. Thermo-mechanical large deformation response and constitutive modeling of viscoelastic polymers over a wide range of strain rates and temperatures
    A.S. Khan, O. Lopez-Pamies, and R. Kazmi
    International Journal of Plasticity 22, 581–601, 2006

2004

  1. Second-order estimates for the macroscopic response and loss of ellipticity of porous rubbers at large deformations
    O. Lopez-Pamies and P. Ponte Castañeda
    Journal of Elasticity 76, 247–287, 2004
  2. Second-order homogenization estimates incorporating field fluctuations in finite elasticity
    O. Lopez-Pamies and P. Ponte Castañeda
    Mathematics and Mechanics of Solids 9, 243–270, 2004
  3. Second-order estimates for the large-deformation response of particle-reinforced rubbers
    O. Lopez-Pamies and P. Ponte Castañeda
    Comptes Rendus Mecanique 331, 1–8, 2004

2002

  1. Time and temperature dependent response and relaxation of a soft polymer
    A.S. Khan and O. Lopez-Pamies
    International Journal of Plasticity 18, 1359–1372, 2002

Books and Book Chapters

  1. The Elastic Dielectric Response of Elastomers Filled with Liquid Inclusions: From Fundamentals to Governing Equations
    O. Lopez-Pamies
    In Electro- and Magneto-Mechanics of Soft Solids, 2024
  2. Extremely Large Deformations with Polygonal and Polyhedral Elements
    G.H. Paulino, H. Chi., C. Talischi, and O. Lopez-Pamies
    In Generalized Barycentric Coordinates in Computer Graphics and Computational Mechanics, 2017