stress-rupture plasticity

Through heating, raising moisture content and improving the surface condition of bamboo, plasticity of bamboo can be increased, bending stress can be reduced to opposite direction.

竹材通过加热、提高含水率和改善竹材的表面状态等三种途径来增加其塑性、减小展平时的反向弯曲应力。

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The stability of the base structure for the fracture rock-mass of great stress area in Jinchuan lean ore area mining by natural caving process is analyzed by the three-dimensional elastic-plasticity finite element numerical analogy.

采用三维有限元弹塑性数值模拟方法，分析金川贫矿区高应力破碎岩体自然崩落法开采过程中底部结构的稳定性。

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In order to describe mechanical property of materials subjected to cyclic loading, the back stress was introduced in polycrystalline plasticity model. Furthermore, size effect was considered through slide resistance evolution function.

多晶塑性模型中通过引入背应力考虑循环载荷下材料力学行为响应，而且，在滑移阻力函数中考虑了材料的尺寸效应。

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Based on the theory of Biot consolidation and visco elastic plasticity, the finite element model is constructed, and the corresponding finite element computer procedures are compiled at the same time, then the regularity of the stress and the strain of the sea embankment are analyzed.

本文首先基于弹塑性Biot固结理论，采用有限单元方法，编制了相应的有限元计算程序，对加固前后的海堤进行了应力应变分析。

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According to theory of thermal plasticity, the formula of stress and deformation are deduced while bearing axisymmetric temperature and equal pressure.

因此根据塑性力学理论，给出了平面轴对称温度分布和受内外均布压力的作用下圆筒应力和变形计算式。

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