Prediction of forming limits of the multilayer metallic sheet

T. Oya, C. Jeong, J. Yanagimoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this paper, the forming limit of a multilayer metallic steel sheet is numerically investigated. Multilayer metallic sheets are an emerging sheet metal that is designed to achieve both high strength and enough formability, which is seriously demanded especially from the automotive industry. Unfortunately, its mechanism of enhanced ductility, fracture behavior, and forming limits have not been sufficiently studied. Therefore, a new stress-strain curve formula is constructed so as to precisely predict the forming limit that is influenced by the unique characteristics of the multilayer metallic sheets. Tensile and stretching experiment on a 15-layer multilayer metallic sheet is conducted, then the results are used to verify the effectiveness of the presented stress-strain expression, and the predicted forming limits are compared to the experimental value, resulted in a good agreement.

Original languageEnglish
Title of host publication8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2011
Pages772-779
Number of pages8
DOIs
Publication statusPublished - 2011 Sep 19
Event8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2011 - Seoul, Korea, Republic of
Duration: 2011 Aug 212011 Aug 26

Publication series

NameAIP Conference Proceedings
Volume1383
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2011
CountryKorea, Republic of
CitySeoul
Period11/8/2111/8/26

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Keywords

  • Ductility enhancement
  • Forming limit
  • Multilayer metallic steel sheet
  • Sheet metal

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cite this

Oya, T., Jeong, C., & Yanagimoto, J. (2011). Prediction of forming limits of the multilayer metallic sheet. In 8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2011 (pp. 772-779). (AIP Conference Proceedings; Vol. 1383). https://doi.org/10.1063/1.3623684