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Adaptive remeshing for ductile fracture prediction in metal formingRemaillage adaptatif pour la prévision de la rupture ductile en mise en forme
Authors:Houman Borouchaki  Abdelhakim Cherouat  Patrick Laug  Khemais Saanouni
Institution:1. Université de technologie de Troyes, GSM-LASMIS, BP 2060, 10010 Troyes cedex, France;2. INRIA-Rocquencourt, BP 105, 78153 Le Chesnay cedex, France
Abstract:The analysis of mechanical structures using the Finite Element Method in the framework of large elastoplastic strain, needs frequent remeshing of the deformed domain during computation. Indeed, the remeshing is due to the large geometrical distortion of finite elements and the adaptation to the physical behavior of the solution. This paper gives the necessary steps to remesh a mechanical structure during large elastoplastic deformations with damage. An important part of this process is constituted by geometrical and physical error estimates. The proposed method is integrated in a computational environment using the ABAQUS/Explicit solver and the BL2D-V2 adaptive mesher. To cite this article: H. Borouchaki et al., C. R. Mecanique 330 (2002) 709–716.
Keywords:solids and structures  moving mesh  adaptive meshing  remeshing in large deformation  error estimate  finite plastic strain  ductile damage  orthogonal cutting  crushing  solides et structures  maillage mobile  maillage adaptatif  remaillage  estimateur d'erreur  grandes deformations plastiques  endommagement ductile  découpage orthogonal  écrasement
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