Compression deformation behaviors of sheet metals at various clearances and side forces

Mei Zhan*, Xianxian Wang, Jian Cao, He Yang

*Corresponding author for this work

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

Abstract

Modeling sheet metal forming operations requires understanding of plastic behaviors of sheet metals along non-proportional strain paths. The plastic behavior under reversed uniaxial loading is of particular interest because of its simplicity of interpretation and its application to material elements drawn over a die radius and underwent repeated bending. However, the attainable strain is limited by failures, such as buckling and in-plane deformation, dependent on clearances and side forces. In this study, a finite element (FE) model was established for the compression process of sheet specimens, to probe the deformation behavior. The results show that: With the decrease of the clearance from a very large value to a very small value, four defects modes, including plastic t-buckling, micro-bending, w-buckling, and in-plane compression deformation will occur. With the increase of the side force from a very small value to a very large value, plastic t-buckling, w-buckling, uniform deformation, and in-plane compression will occur. The difference in deformation behaviors under these two parameters indicates that the successful compression process without failures for sheet specimens only can be carried out under a reasonable side force.

Original languageEnglish (US)
Title of host publication4th International Conference on New Forming Technology, ICNFT 2015
EditorsS. J. Yuan, J. Lin, Yi Qin, T. A. Dean, F. Vollertsen
PublisherEDP Sciences
ISBN (Electronic)9782759818235
DOIs
StatePublished - Aug 10 2015
Event4th International Conference on New Forming Technology, ICNFT 2015 - Glasgow, United Kingdom
Duration: Aug 6 2015Aug 9 2015

Publication series

NameMATEC Web of Conferences
Volume21
ISSN (Electronic)2261-236X

Other

Other4th International Conference on New Forming Technology, ICNFT 2015
Country/TerritoryUnited Kingdom
CityGlasgow
Period8/6/158/9/15

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

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