Ideal sheet forming with frictional constraints

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The ideal forming theory, previously developed as a direct design method to guide iterative design practices based on analytic methods, does not properly account for frictional effects prevalent in real forming. A method for introducing the effects of the Coulomb friction in the ideal sheet forming theory was developed in this work by modifying the extremum work criterion. For numerical implementation, a rigid-plastic finite element method was used based on triangular membrane elements. Computational results were compared with experiments given in NUMISHEET'93 using a planar anisotropic strain rate potential proposed by Barlat et al. (Barlat, F., Chung, K., Richmond, O., 1993. Strain rate potential for metals and its application to minimum plastic work path calculations. Int. J. Plasticity 9, 51,) and the Coulomb friction model. (C) 2000 Elsevier Science Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2000
Language
English
Article Type
Article; Proceedings Paper
Keywords

FINITE-ELEMENT SIMULATION; MINIMUM PLASTIC WORK; DEFORMATION; METALS

Citation

INTERNATIONAL JOURNAL OF PLASTICITY, v.16, no.6, pp.595 - 610

ISSN
0749-6419
DOI
10.1016/S0749-6419(99)00068-6
URI
http://hdl.handle.net/10203/203821
Appears in Collection
ME-Journal Papers(저널논문)
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