The Dependence of Constitutive Model on the Density, Temperature, Pressure and Strain Rate
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摘要: 对于弹塑性本构关系中的两个主要物理量,即切变模量和屈服强度,除考虑与温度、密度、压强相关外,本文还引入应变率的影响,并且把静态和动态屈服统一到一个模型中,对于2024Al作了计算,结果与实验符合程度是令人满意的。Abstract: We introduce strain rate into constitutive model and integrate dynamic and static yield into the same model. Results of computation for 2024Al are in good agreement with experiments.
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Key words:
- constitutive model /
- strain rate /
- dislocation
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Steinberg D J, Cochran S G, Guinan M W. J Appl Phys, 1980, 51(3): 1498. Shioiti J, Sakino K, Satoh K. In: Macro- and micro-mechanics of high velocity deformation and fracture. Berlin: Springer, 1987: 179-188. 张万甲. 第三届全国高压学术讨论会论文集. 长春: 吉林大学出版社, 1986: 265-267. 王春奎, 等. Ly-12AI高温屈服强度的测量. 董玉斌, 张万甲, 经福谦, 等. 高压物理学报, 1988, 2(4): 305-312. Shioiri J, Satoh K. Proceedings of the Conference on the Mechanical Properties of Materials at High Rates of Strain. London, England, 1974: 154-162. Shioiri J, Satoh K. Proceedings of the Seconds Conference on the Mechanical Properties of Materials at High Rates of Strain. Bristol, England, 1979: 121-129. Shioiri, J. Satoh K. Proceedings of the Third Conference on the Mechanical Properties of Materials at High Rates of Strain. Bristol, England, 1984: 89-96. Shioiri, J. Satoh K. J Phys Collog, 1985, 46(c-5): 3-10.
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