3D finite element analysis of wrinkling in the swift-cup test: Onset and growth

Shyam K. Samanta, A. Mitra, A. K. Maity

Research output: Contribution to book or proceedingConference articlepeer-review

3 Scopus citations

Abstract

The flange wrinkling phenomenon in the swift-cup test is studied here using large strain non-linear three-dimensional shell elements. The use of elasto-plastic shell elements enables us to study both the onset and growth of wrinkles and precludes the use of Hill's bifurcation criterion (1958). The implications of this are explored in detail. The sheet metal is assumed to be isotropic, exhibiting isotropic hardening. The flange draw-in is modeled as an annular plate subjected to a radial tensile load at the inner radius. The critical drawing stress and the critical drawing displacements are obtained for various drawing ratios, sheet thicknesses and yield strengths assuming a flow theory of plasticity. Our finite element results are in overall agreement with the previously published results, and it is then shown that the proposed approach is effective for detailed analysis of three-dimensional sheet forming problems.

Original languageEnglish
Title of host publicationComputational Methods on Materials Processing
PublisherPubl by ASME
Pages75-86
Number of pages12
ISBN (Print)0791811158
StatePublished - 1992
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: Nov 8 1992Nov 13 1992

Publication series

NameAmerican Society of Mechanical Engineers, Materials Division (Publication) MD
Volume39

Conference

ConferenceWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA
Period11/8/9211/13/92

Scopus Subject Areas

  • General Engineering

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