Skip to Main content Skip to Navigation
Journal articles

Computational homogenization of porous materials of Green type

Abstract : The constitutive response of porous materials is investigated computationally. For the solid phase elasto- plastic behavior of Green type is considered, i.e. an isotropic compressible yield criterion is assumed. A wide range of material parameters and porosities from 0.1 to 30 % are investigated by means of FEM simulations of periodic ensembles of spherical pores. The dilatation of the pores and of the compressible matrix are evaluated. It is found that a large part of the total dilatation is due to plastic volume changes of the solid phase. The asymptotic stress states of the simulations are compared to analytical predictions by Shen et al. (Comput Mater Sci 62:189-194, 2012). Based on the computational data, an effective constitutive law is proposed and verified by means of additional computations. A three-scale homogenization procedure for double porous materials is proposed that depends only on the micro- and mesoscale porosity and the yield stress of the solid phase.
Document type :
Journal articles
Complete list of metadata

https://hal-mines-paristech.archives-ouvertes.fr/hal-00874802
Contributor : Bibliothèque Umr7633 <>
Submitted on : Friday, October 18, 2013 - 3:45:56 PM
Last modification on : Tuesday, December 15, 2020 - 4:01:11 AM

Links full text

Identifiers

Citation

Félix Fritzen, Samuel Forest, Djimedo Kondo, Thomas Böhlke. Computational homogenization of porous materials of Green type. Computational Mechanics, Springer Verlag, 2013, 52, pp.121-134. ⟨10.1007/s00466-012-0801-z⟩. ⟨hal-00874802⟩

Share

Metrics

Record views

417