Ductile damage of porous materials with two populations of voids

Pierre-Guy Vincent (1, 2) , Yann Monerie (2) , Pierre Suquet (1)

1 LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]
2 IRSN - Institut de Radioprotection et de Sûreté Nucléaire

This note presents an upper bound and an estimate for the yield yield function of a material with a rigid ideally plastic matrix and two scale cavities. The results are compared to numerical simulations. The laws of evolution of the two porosities are determined.

Mots clés: Damage; voided materials

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]

Pierre-Guy Vincent, Yann Monerie, Pierre Suquet. Ductile damage of porous materials with two populations of voids. Comptes Rendus Mécanique, 2008, 336 (1-2), pp.245-259. ⟨10.1016/j.crme.2007.11.017⟩. ⟨hal-00214157⟩