Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Finite deformation of porous elastomers: a computational micromechanics approach
Year:2007
Research Areas
  • Materials
Information
Abstract
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.
International
Si
JCR
Si
Title
PHILOS MAG
ISBN
1478-6435
Impact factor JCR
1,486
Impact info
Volume
87
Journal number
35
From page
5607
To page
5627
Month
SIN MES
Ranking
Participants
  • Autor: Joaquín Moraleda (IMDEA Materiales)
  • Autor: Fco. Javier Llorca Martinez (UPM)
  • Autor: Javier Segurado Escudero (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales avanzados y nanomateriales
  • Departamento: Ciencia de los Materiales
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)