Investigation of the flange earring of deep-drawing aluminum sheets by rate-independent polycrystalline plasticity finite element analysis

Li Dayong; Zhang Shaorui; Peng Yinghong

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Investigation of the flange earring of deep-drawing aluminum sheets by rate-independent polycrystalline plasticity finite element analysis

机译：Investigation of the flange earring of deep-drawing aluminum sheets by rate-independent polycrystalline plasticity finite element analysis

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摘要

Plastic anisotropy, which exerts evident influence on the formability of sheet metals, is mainly caused by crystalline texture and its evolution. In this paper, a rate-independent crystalline plasticity constitutive model is developed and introduced into elasto-plastic dynamic explicit finite element method. The crystal orientations are assigned to FE integration points, which represent crystals and can rotate individually, according to characteristics of orientation distribution function in orientation space. "Successive integration method" is employed to determine active slip systems and calculate plastic strain rate. Then the cylindrical cup deep-drawing processes of rolled and annealing aluminum blanks are simulated and texture evolution is calculated based on the proposed rate-independent crystalline plasticity finite element method. The simulation results show good agreement with experimental ones. Finally, the influences of two initially typical crystal orientations on flanging earring are numerically analyzed, which is helpful to explain the experimental results.

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来源
《Key engineering materials》 |2004年第1期|559-564|共6页
作者
Li Dayong; Zhang Shaorui; Peng Yinghong;
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作者单位

School of Mechanical Engineering, Shanghai Jiao Tong University, Huashan Road 1954, Shanghai, 200030, P. R. China;

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原文格式 PDF
正文语种英语
中图分类工程基础科学;
关键词
rate-independent; polycrystalline plasticity; explicit finite element method; flanging earring; orientation distribution.function (ODF);

Investigation of the flange earring of deep-drawing aluminum sheets by rate-independent polycrystalline plasticity finite element analysis

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