Ductile damage and fracture finite element modelling of elasto-viscoplastic voided materials

被引：12
|
作者：
Lauro, F [1 ]
Bennani, B [1 ]
Drazetic, P [1 ]
Oudin, J [1 ]
Ni, X [1 ]
机构：
[1] PAM SYST INT SA,RUNGIS,FRANCE
来源：
COMPUTATIONAL MATERIALS SCIENCE | 1997年 / 7卷 / 03期
关键词：
D O I：
10.1016/S0927-0256(96)00098-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Micro-structure void volume fraction is taken into account with finite element models developed for high strain rate elasto-viscoplastic problems. Void nucleation rate depends on matrix effective strain rate, void growth on material strain rate and elasto-viscoplastic potential proposed for porous material, void coalescence on matrix effective plastic strain rate and ductile fracture on critical void volume fraction. A radial return algorithm is proposed for the implementation into explicit finite element frameworks, Reference finite element modelling of ductile damage increases and fracture occurrence is performed for high-speed upsetting of steel multi-tubular.
引用
收藏
页码：295 / 307
页数：13
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