Simulation of springback in V-bending process by elasto-plastic finite element method with consideration of bauschinger effect

Takeshi Uemori, Tatsuo Okada, Fusahito Yoshida

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This paper presents the prediction of springback in sheet metal forming in terms of the description of the Bauschinger effect. It addresses three different types of constitutive models: an iso-tropic hardening model (IH model), a linearly kinematic hardening model (LK model), and a model of combined linearly-non-linearly kinematic and isotropic hardening (L-NK+IH model). The springback predicted by the L-NK+IH model is found to be more pronounced than that by the IH and the LK model. It is caused by the stress-strain response characterized by the gradual transition from fully elastic to plastic behavior during stress-reversal, which is essential to the L-NK+IH model.

Original languageEnglish
Pages (from-to)311-314
Number of pages4
JournalMetals and Materials International
Volume4
Issue number3
Publication statusPublished - Dec 1 1998
Externally publishedYes

Keywords

  • Bauschinger effect
  • Isotropic hardening
  • Kinematic hardening
  • Springback
  • Stress-reversal
  • v-bending process

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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