Experimental and numerical analysis of multilayered steel sheets upon bending

Tetsuo Oya, Nicolas Tiesler, Seiichiro Kawanishi, Jun Yanagimoto, Toshihiko Koseki

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

In this study, the bending formability of multilayered steel sheets is evaluated by tensile tests, V-bending tests, and hemming tests. Enhanced formability was observed in these experiments, namely, the constituent high-strength materials were elongated beyond the original fracture strain limit. As a result of this effect, multilayered steel sheets were successfully formed in V-bending tests and even in hemming tests. Observations using a scanning electron microscope verified that no delamination occurred at interfaces. To represent the geometrical features of a multilayered steel sheet, a solid-element model under an isostrain condition was utilized in finite element modeling, where the rule of mixtures was adopted to obtain the flow curve of the constituent high-strength material, and a good agreement with experimental results was observed. Analyses using this finite element model were conducted to investigate the effect of the geometry on the springback of multilayered steel sheets undergoing V-bending.

Original languageEnglish
Pages (from-to)1926-1933
Number of pages8
JournalJournal of Materials Processing Technology
Volume210
Issue number14
DOIs
Publication statusPublished - 2010 Nov 1
Externally publishedYes

Fingerprint

Experimental Analysis
Steel sheet
Numerical analysis
Numerical Analysis
Steel
Formability
Bending tests
Springback
Tensile Test
Delamination
Finite Element Modeling
Scanning Electron Microscope
Finite Element Model
Electron microscopes
Scanning
Curve
Geometry
Experimental Results
Experiment
Experiments

Keywords

  • Bending formability
  • Finite element analysis
  • Multilayered steel sheet
  • Springback

ASJC Scopus subject areas

  • Computer Science Applications
  • Modelling and Simulation
  • Ceramics and Composites
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

Cite this

Experimental and numerical analysis of multilayered steel sheets upon bending. / Oya, Tetsuo; Tiesler, Nicolas; Kawanishi, Seiichiro; Yanagimoto, Jun; Koseki, Toshihiko.

In: Journal of Materials Processing Technology, Vol. 210, No. 14, 01.11.2010, p. 1926-1933.

Research output: Contribution to journalArticle

Oya, Tetsuo ; Tiesler, Nicolas ; Kawanishi, Seiichiro ; Yanagimoto, Jun ; Koseki, Toshihiko. / Experimental and numerical analysis of multilayered steel sheets upon bending. In: Journal of Materials Processing Technology. 2010 ; Vol. 210, No. 14. pp. 1926-1933.
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