A new model for FLD prediction based on advanced constitutive equations

被引：0
|
作者：
Marilena Carmen Butuc
Frederic Barlat
José J. Gracio
Augusto Barata da Rocha
机构：
[1] Universidade de Aveiro,Centro de Tecnologia Mecânica e Automação
[2] Pohang University of Science and Technology (POSTECH),Materials Mechanics Laboratory (MML), Graduate Institute of Ferrous Technology (GIFT)
[3] Universidade do Porto,Departamento de Engenharia Mecânica
来源：
International Journal of Material Forming | 2010年 / 3卷
关键词：
Forming limit; Plastic flow localization; Yield condition; Anisotropic material; Constitutive equations; Numerical simulation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An advanced sheet metal forming limit model is developed. Using the Marciniak-Kuczinsky analysis, this approach intends to join advantages of physics-based aspects of plasticity with advantages of phenomenological material description. It aims thus at connecting the most advanced physically-based hardening model accounting for the evolution of the anisotropic work hardening induced by the microstructural evolution at large strains of Teodosiu and Hu (1995) with the advanced phenomenological anisotropic yield criterion Yld2000-2d (Barlat et al. Int J Plast 19:1297–1319, 2003). Two deep-drawing quality sheet metals are selected: a bake-hardening steel (BH) and AA6016-T4 aluminium alloy. Linear and complex strain paths are taken into account. By comparing the simulated and experimental results the model is validated.
引用
收藏
页码：191 / 204
页数：13
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