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Article Dans Une Revue International Journal of Solids and Structures Année : 2014

Numerical simulation of 3D ductile cracks formation using recent improved Lode-dependent plasticity and damage models combined with remeshing

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Trong-Son Cao
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Résumé

Damage to fracture transition has become a popular topic in the ductile fracture scientific community. Indeed, the transition from a damage continuous approach to a discontinuous fracture is not straightforward both from mechanical and numerical points of view. In the present study, a new improved Lode dependent phenomenological coupled damage model is used to investigate the ductile fracture in different mechanical tests. The remeshing and elements erosion techniques are employed to propagate the ductile cracks in 3D models using Forge® finite element code. This code is based on a mixed velocity-pressure formulation using the MINI element P1+/P1P1+/P1. In addition, the plasticity behavior is modeled by a Lode-dependent plasticity criterion. Applications to different mechanical tests at different loading configurations, using identified damage model parameters, show good agreement in terms of fracture prediction between experimental and numerical results.

Dates et versions

hal-00974745 , version 1 (07-04-2014)

Identifiants

Citer

Trong-Son Cao. Numerical simulation of 3D ductile cracks formation using recent improved Lode-dependent plasticity and damage models combined with remeshing. International Journal of Solids and Structures, 2014, 51 (3), pp.2370-2381. ⟨10.1016/j.ijsolstr.2014.03.005⟩. ⟨hal-00974745⟩
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