A computational homogenization of random porous media: Effect of void shape and void content on the overall yield surface - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue European Journal of Mechanics - A/Solids Année : 2015

A computational homogenization of random porous media: Effect of void shape and void content on the overall yield surface

Résumé

A computational homogenization study of three-dimensional cubic cells is presented to estimate the overall yield surface of random porous media covering a wide range of stress triaxiality ratios. The representativity of the overall yield surface estimates is examined using cubic cells containing randomly distributed and oriented voids with different volume fractions and shapes (spherical and oblate/prolate). The computational results are compared with some existing Gurson-type yield criteria. The extension of the Gurson-Tvergaard model recently proposed by Fritzen et al. (2012) for spherical cavities is shown in good agreement with the computational results for all investigated porosities.
Fichier non déposé

Dates et versions

hal-01058921 , version 1 (28-08-2014)

Identifiants

Citer

Younis-Khalid Khdir, Toufik Kanit, Fahmi Zaïri, Moussa Nait-Abdelaziz. A computational homogenization of random porous media: Effect of void shape and void content on the overall yield surface. European Journal of Mechanics - A/Solids, 2015, 49, pp.137-145. ⟨10.1016/j.euromechsol.2014.07.001⟩. ⟨hal-01058921⟩

Collections

CNRS
104 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More