Modeling of Bauschinger effect during stress reversal

Takeshi Uemori, Satoshi Sumikawa, Fusahito Yoshida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

It is widely known that the constitutive model of Bauschinger effect is one of key points to conduct the accurate sheet metal stamping. In the present research, the elasto-plasticity behaviors of thin sheet metals were investigated by conducting in-plane cyclic tension-compression tests in the different angle from the pre-strained direction. In order to evaluate the accuracy of constitutive models for describing the above mentioned elasto-plasticity behaviors, including the Bauschinger effect, some numerical experiments were conducted for the corresponding stress paths calculations by using three kinds of constitutive models: the isotropic hardening model (hereafter IH model), Yoshida-Uemori model (hereafter Y-U model), and the modified Yoshida-Uemori kinematic hardening model (hereafter modified Y-U model). From the comparisons, it is found that the author's present constitutive model shows a good agreement with the experimental stress-strain responses. Stress-strain responses of IF sheet metal under uniaxial tension in the 90° after uniaxial pre straining. The Modified Yoshida-Uemori model shows a good agreement with the corresponding experimental stress strain responses.

Original languageEnglish
Pages (from-to)1267-1272
Number of pages6
JournalSteel Research International
Volume84
Issue number12
DOIs
Publication statusPublished - Dec 2013
Externally publishedYes

Keywords

  • Bauschinger effect
  • constitutive model
  • in-plane cyclic tension-compression tests
  • stress paths

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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