Plastic deformation behavior of high strength steel sheet under non-proportional loading and its modeling

Takeshi Uemori, Yuji Mito, Satoshi Sumikawa, Ryutaro Hino, Fusahito Yoshida, Tetsuo Naka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper deals with plastic deformations of a high tensile strength steel sheet (HTSS sheet) under biaxial stress condition including strain path. Using a cruciform specimen of a HTSS sheet of 780MPa-TS, experiments under proportional and non-proportional loadings were investigated. Numerical simulations of stress-strain responses for several strain paths after biaxial stretching were conducted using a large-strain cyclic plasticity model (Yoshida-Uemori model). The results of numerical simulation agrees well the corresponding experimental results, which is attributed to the accurate modeling of the backstress evolution of the anisotropic yield function.

Original languageEnglish
Pages (from-to)5394-5399
Number of pages6
JournalInternational Journal of Modern Physics B
Volume22
Issue number31-32
Publication statusPublished - Dec 30 2008
Externally publishedYes

Keywords

  • Constitutive model
  • High tensile strength steel sheet
  • Kinematic hardening model
  • Non-proportional loading
  • Yield function
  • Yield surface

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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