| 铝合金铸件凝固过程效应力数值模拟 |
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| 引用本文： | 程军,程眉,党惊知,郭力佳.铝合金铸件凝固过程效应力数值模拟[J].特种铸造及有色合金,1995(5). |
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| 作者姓名： | 程军 程眉 党惊知 郭力佳 |
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| 作者单位： | 华北工学院 |
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| 摘 要： | 通过铝硅合金准固态力学行为和流变性能的测试，获得了该合金铸件凝固过程应力应变本构方程。并在此基础上开发了考虑材料高温力学性能，分析三维轴对称铸件凝固过程热粘弹塑性问题的热应力模拟程序，对带热节铝硅合金铸件的计算表明，计算结果与实验结果吻合较好。
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| 关 键 词： | 铝硅合金，热应力，数值模拟 |
Numerical Simulation of Thermal Stress in Al-Si Alloy Castings During Solidification Process |
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| Cheng Jun, Cheng Mei,Dang Jingzhi,Guo Lijia.Numerical Simulation of Thermal Stress in Al-Si Alloy Castings During Solidification Process[J].Special Casting & Nonferrous Alloys,1995(5). |
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| Authors: | Cheng Jun Cheng Mei Dang Jingzhi Guo Lijia |
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| Affiliation: | North China Institute of Technology |
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| Abstract: | In this paper,the stress-strain mathematical equation during solidification process of Al-Si alloy castings was obtained, based on the experimental study of the semisolid mechanical and rheologic properties of the alloy.A numerical simulation program of the thermal stresses of 3-D axisymetric Al-Si alloy castings has been developed, which can be used to solve the thermoelastoviscoplasticity problem related to the high temperature mechanical properties of the material. The behavior of Al-Si alloy casting with a hot spot predicted by computation was consistent with the experimental results. |
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| Keywords: | Al-Si alloy Thermal stress Numerical simulation |
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