Crystal plasticity extended models based on thermal mechanism and damage functions: Application to multiscale modeling of aluminum alloy tensile behavior
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- 作者：Ping Hu ; Yang Liu ; Yiguo Zhu ; zhuyg@dlut.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Liang Ying
- 关键词：Aluminum alloy ; A. Thermomechanical processes ; B. Crystal plasticity ; B. Constitutive behaviour ; A. Fracture mechanisms
- 刊名：International Journal of Plasticity
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：86
- 期：Complete
- 页码：1-25
- 全文大小：5677 K
文摘
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The CPFEM coupled with damage evolution function and thermo-plasticity is used to simulate the deformation of aluminum alloy.
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The revised Orowan equation is used to describe the evolution of shear strain rate directly associated with temperature.
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The representative volume element with Voronoi tessellation is used to obtain thermal material parameters by curve fitting.
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The simulation of polycrystalline aluminum alloy thermal tensile process agrees well with the experimental data.