Identification methodology and comparison of phenomenological ductile damage models for complex loading paths

Trong-Son Cao (1) , Pierre Montmitonnet (1) , Pierre-Olivier Bouchard (1)

1 CEMEF - Centre de Mise en Forme des Matériaux

Understanding and modeling of ductile damage mechanisms remains a major issue for many industrial cold forming processes. The ability of numerical modeling to predict the ductile fracture is indeed crucial. However, this modeling is limited because of the complexity to take into account the influence of the complex loading paths (multi-axial and non-monotonic, nonproportional, shear effects, etc.) on damage mechanisms.

Mots clés: Ductile damage; Lemaitre model; Lode parameter; fracture locus; proportional loading

Domaines: Matériaux

Trong-Son Cao, Pierre Montmitonnet, Pierre-Olivier Bouchard. Identification methodology and comparison of phenomenological ductile damage models for complex loading paths. CSMA 2013 - 11ème colloque national en calcul des structures, May 2013, Giens, France. ⟨hal-00861834⟩