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A Generalized Mixed Kinematic-Isotropic Hardening Plastic Model Coupled With Anisotropic Damage for Sheet Metal Forming

[+] Author Affiliations
C. L. Chow, X. J. Yang

University of Michigan at Dearborn, Dearborn, MI

Paper No. IMECE2002-33019, pp. 37-44; 8 pages
doi:10.1115/IMECE2002-33019
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Applied Mechanics and Biomedical Technology
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Applied Mechanics Division
  • ISBN: 0-7918-3627-4 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

The paper presents a generalized mixed isotropic-kinematic hardening plastic model coupled with anisotropic damage for sheet metal forming. A nonlinear anisotropic kinematic hardening is developed. For the predication of limit strains at localized necking in stamping under complex strain history, the model and its associated damage criterion for localized necking are established and implemented into LS-DYNA3D by compiling it as a user subroutine. The finite element simulation of LS-DYNA3D based on the present model is carried out. The location of localized necking for sheet metal forming has been successfully identified.

Copyright © 2002 by ASME

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