@inproceedings{2bc2a40fa5554ae98b651745a675f0f6,
title = "3D finite element analysis of wrinkling in the swift-cup test: Onset and growth",
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.",
author = "Samanta, {Shyam K.} and A. Mitra and Maity, {A. K.}",
year = "1992",
language = "English",
isbn = "0791811158",
series = "American Society of Mechanical Engineers, Materials Division (Publication) MD",
publisher = "Publ by ASME",
pages = "75--86",
booktitle = "Computational Methods on Materials Processing",
note = "Winter Annual Meeting of the American Society of Mechanical Engineers ; Conference date: 08-11-1992 Through 13-11-1992",
}