Journal
INTERNATIONAL JOURNAL OF MATERIAL FORMING
Volume 6, Issue 2, Pages 267-279Publisher
SPRINGER FRANCE
DOI: 10.1007/s12289-011-1084-1
Keywords
FLC; MMFC; Sheet forming; Failure prediction
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In order to perform the theoretical evaluation of Forming Limit Curves (FLC), the Modified Maximum Force Criterion (MMFC) has been proposed. This paper investigates the mechanism of the fracture of ductile sheet metals and introduces the MMFC model. The evaluation process and the simplified formulations are presented. The influences of hardening behavior and the yield loci are discussed as well. Comparisons with the experimental data of different materials showed generally satisfactory agreement.
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