On the basis stated above, a numerical method of plastic dynamics and material failure judgment are used to analyze the causes of joint failure from the aspects of structure and internal pressure.

据此，从结构和内压角度，应用塑性动力学的数值方法和材料的破坏判据分析了引起接头脱落失效的几种因素。

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Secondly, a plastic relaxation function describing the behaviour of plastic flow under high temperature and high pressure is suggested from the viewpoint of dislocation dynamics.

其次，从位错动力学角度建议了一个塑性松弛函数以便描述高温、高压下塑性流动的特性。

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We discuss the dynamics problems of ideal rigid-plastic material in the flow theory of plasticity in this paper.

本文讨论了塑性流动理论中的理想刚塑性材料的动力学问题。

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