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Numerical damage prediction in deep-drawing of sheet metals

Authors
Journal
Journal of Materials Processing Technology
0924-0136
Publisher
Elsevier
Publication Date
Volume
200
Identifiers
DOI: 10.1016/j.jmatprotec.2007.08.041
Keywords
  • Plastic Anisotropy
  • Damage
  • Large Plastic Strains
  • Contact And Friction
  • Deep-Drawing
  • Fem

Abstract

Abstract This paper presents an efficient damage model based on the strong coupling of both anisotropic elasto-plasticity and isotropic ductile damage. The elasto-plasticity is modeled with mixed non-linear work hardening considering both isotropic and kinematic effects. The developed model is then coupled with the finite element method using ABAQUS finite element code. First, the formulation of the proposed damage model is presented. A comparison between numerical and experimental results is presented, in the context of the square cup deep-drawing benchmark test of Numisheet 1993. The results demonstrate the capability of the model to predict where and when the damaged zones will appear in the workpiece during the forming operation.

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