| 接触热弹塑性蠕变屈曲研究 |
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| 引用本文： | 王建省. 接触热弹塑性蠕变屈曲研究[J]. 北方工业大学学报, 1999, 11(3): 19-29 |
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| 作者姓名： | 王建省 |
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| 作者单位： | 北方工业大学建筑学院!北京石景山100041 |
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| 摘 要： | 基于文献〔１〕提出的临界应力－边界单元法，对热接触塑性问题的蠕变屈曲现象进行了研究，推导出了用于蠕变分析的接触热弹塑性增量型本构关系及临界应力－边界单元法组合方程格式，给出了根据不同边界条件确定临界时间的耦合方程式，推导了２类方程，对影响临界时间的各因素进行了分析并给出了确定的数学关系。最后计算了３个实例。
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| 关 键 词： | 蠕变屈曲 本构关系 热应力 接触体 临界应力 |
A Study of Contact Thermo-Elasto-Plastic Creep Buckling |
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| Wang Jianxing. A Study of Contact Thermo-Elasto-Plastic Creep Buckling[J]. Journal of North China University of Technology, 1999, 11(3): 19-29 |
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| Authors: | Wang Jianxing |
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| Abstract: | In this paper, a contact thermo-elasto-plasticity creep buckling phenomenon proposed by the Critical Stress-Boundary Element Method (CSBEM)according to the literature [1] is studied. The incremental constitutive equation used in creep and the form of Critical Stress-Boundary Element Method are derived. The couple equation determining the time with discretization is derived according to different boundary conditions; two types of equations are constituted; diversified factors influencing critical time are analyzed and mathematics relation was assayed, and finally some examples are shown. |
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| Keywords: | creep buckling constitutive equation thermal stress contact bodies Critical Stress-Boundary Element Method discretization |
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