Application of polycrystal plasticity to sheet forming

A. J. Beaudoin, P. R. Dawson, K. K. Mathur, U. F. Kocks, D. A. Korzekwa

Research output: Contribution to journalArticlepeer-review

Abstract

A methodology for including anisotropy in metal forming analyses is presented. A finite element formulation is developed for the analysis of the inhomogeneous macroscopic deformations. Anisotropic material properties are derived from a microscopic description based on polycrystal plasticity theory. Efficient computation of the microscopic variables is achieved through massive data parallel computations. A procedure is set forth for initialization of the microscopic state variables from experimental measurement of the metal texture. The feasibility of initializing (from experimental data) and evolving (through massive computations) a detailed microscopic description for a complex deformation process is demonstrated through a predictive simulation. The predicted location and height of ears in the hydroforming of aluminium sheets are in good agreement with experiment.

Original languageEnglish (US)
Pages (from-to)49-70
Number of pages22
JournalComputer Methods in Applied Mechanics and Engineering
Volume117
Issue number1-2
DOIs
StatePublished - Jul 1994
Externally publishedYes

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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