Adaptive remeshing for ductile fracture prediction in metal formingRemaillage adaptatif pour la prévision de la rupture ductile en mise en forme |
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Authors: | Houman Borouchaki Abdelhakim Cherouat Patrick Laug Khemais Saanouni |
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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 |
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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. |
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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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