Prediction of the influence of yield locus on the limit strains in sheet metals

被引：39
作者：
Banabic, D
Dannenmann, E
机构：
[1] Tech Univ Cluj Napoca, Cluj Napoca 3400, Romania
[2] Univ Stuttgart, Inst Met Forming, D-70174 Stuttgart, Germany
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2001年 / 109卷 / 1-2期
关键词：
metal sheet formability; forming limit diagrams; swift model; Marciniak-Kuczynski theory; Hill'93 yield criterion;
D O I：
10.1016/S0924-0136(00)00770-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents a new approach to the Forming Limit Diagram (FLD) modeling. The yield criterion (1993), recently proposed by Hill, is used for the calculation of the limit strains in connection with the Swift's instability condition for diffuse necking and by using the Marciniak-Kuczynski analysis. The influence of the ratio between uniaxial and biaxial yield stress (sigma (u)/sigma (b)), a, upon the FLD's is presented. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：9 / 12
页数：4
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