FE analysis of springback in hat-bending with consideration of initial anisotropy and the Bauschinger effect

Takeshi Uemori, Tatsuo Okada, Fusahito Yoshida

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

This paper demonstrates how strongly the analytical prediction of springback is influenced by the description of material's stress-strain responses appearing during stress reversal. For the finite element analysis of hat-bending and the subsequent springback, three different types of constitutive models i.e., (a) isotropic hardening (IH) model, (b) linearly kinematic hardening (LKH) model, and (c) combined hardening (IH+LKH+non-linearly kinematic hardening [NLKH]) model, were employed. When using the combined hardening model, the calculated sheet geometries showed the excellent agreement with the experimental results, while the predictions by both the IH and LKH models under-estimate the springback.

Original languageEnglish
Pages (from-to)497-502
Number of pages6
JournalKey Engineering Materials
Volume177-180 II
Publication statusPublished - Dec 1 2000

    Fingerprint

Keywords

  • Constitutive Model
  • Finite Element Method
  • Hat-Bending
  • Initial Anisotropy
  • Springback

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this