Numerical aspects of a problem with damage to simulate mechanical behavior of a quasi-brittle material

Isabelle Comby Peyrot (1, 2) , Pierre-Olivier Bouchard (1) , François Bay (1) , Fabrice Bernard (1, 2) , Eric Garcia-Diaz (1, 3)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 Mines Douai EMD - École des Mines de Douai
3 CERI MP - IMT Nord Europe - Centre for Materials and Processes

This paper focuses on numerical problems related to the implementation of the non-local Mazars model in a Finite Element software Femcam developed in our laboratory. The model has been successfully applied for quasi-brittle materials. Several mechanical test cases are presented and validate the implementation. A sensitivity study concludes on the effect of the critical equivalent strain and internal length values on the global response of the material

Mots clés: Damage; Finite element; Kill element; Mechanical formulation; Non-local Mazars model

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Isabelle Comby Peyrot, Pierre-Olivier Bouchard, François Bay, Fabrice Bernard, Eric Garcia-Diaz. Numerical aspects of a problem with damage to simulate mechanical behavior of a quasi-brittle material. Computational Materials Science, 2007, 40 (3), pp.327-340. ⟨10.1016/j.commatsci.2007.01.018⟩. ⟨hal-00612930⟩