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Memorias de investigación
Artículos en revistas:
Finite deformation of porous elastomers: a computational micromechanics approach
Año:2007
Áreas de investigación
  • Materiales
Datos
Descripción
The finite deformation of porous elastomers was studied by means of the numerical simulation of a representative volume element of the microstructure. The size and the discretization of the volume element were selected to obtain an exact response (to a few percent) of the plane-strain deformation of a material made up of a random and isotropic dispersion of circular cylindrical voids embedded in an incompressible neo-Hookean matrix. Three different loading modes (in-plane isotropic deformation, uniaxial elongation, and uniaxial traction) were simulated, and the corresponding stress - strain curves as well as the evolution of the microstructure with deformation were presented for materials with an initial porosity of 5, 10 and 20%. The numerical results were compared with the available homogenization models for the finite deformation of porous elastomers. It was found that the second-order estimate with field fluctuations of Lopez-Pamies and Ponte Castaneda led to very good approximations to the numerical results in most cases, and significant differences were only found under conditions of highly constrained deformation. The sources of these differences were discussed in the light of the changes in the microstructure provided by the numerical simulations.
Internacional
Si
JCR del ISI
Si
Título de la revista
PHILOS MAG
ISSN
1478-6435
Factor de impacto JCR
1,486
Información de impacto
Volumen
87
DOI
Número de revista
35
Desde la página
5607
Hasta la página
5627
Mes
SIN MES
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Participantes
  • Autor: Joaquín Moraleda (IMDEA Materiales)
  • Autor: Fco. Javier Llorca Martinez (UPM)
  • Autor: Javier Segurado Escudero (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Materiales Estructurales avanzados y nanomateriales
  • Departamento: Ciencia de los Materiales
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