Prediction of forming limit diagrams based on shear failure criterion

Jun Lin, Luen Chow Chan, Lin Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

Maximum shear stress theory, also called the 'Third Strength Theory', is a classical theory used to predict the failure of common metal, but it cannot be used directly to predict sheet metal failure due to anisotropy and the loading path. Therefore, this paper proposes a maximum shear stress calculating method, which has been named "shear failure criterion" for the purpose of this paper. In order to validate the shear failure criterion, a general program was developed, and two typical materials, steel, and aluminum alloy, were used to study the new shear failure criterion in this study. The two materials were modeled by advanced constitutive models, including Hill1948 and Yld2000-2d yield functions and several types of isotropic hardening models. Experimental validation has indicated the accuracy of predicted FLD using shear failure criterion, which is able to provide a new alternative method to numerically predict FLD.
Original languageEnglish
Pages (from-to)2855-2865
Number of pages11
JournalInternational Journal of Solids and Structures
Volume47
Issue number21
DOIs
Publication statusPublished - 15 Oct 2010

Keywords

  • Constitutive model
  • Forming limit diagram
  • Shear failure criterion
  • Sheet metal

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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