采用塑性变形理论和刚粘塑性材料模型研究了直流电阻对焊接头的塑性变形。
The joint deformation of DC upset butt welding was studied by using theory of plastic deformation and rigid-viscosity plastic material model.
结合堆载预压加固软基实例，分别采用殷宗泽双屈服面模型、粘弹-粘塑性和粘弹-粘塑性损伤模型进行有限元分析。
Deformation of preloaded soft ground was calculated with the Yin's double yield surface model, the viscoelastic-viscoplastic model and the viscoelastic-viscoplastic damage model respectively.
论述了刚（粘）塑性有限元法的主要思想和处理方法。基于前期的本构模型，得出了刚（粘）塑性有限元法的求解列式。并对有限元数值模拟的发展前景作了预测。
Based on a former constitutive model, the calculation formulas for rigid-(visco) plasticity FEM were worked out, and an overview on the development of FEM numerical simulation was made.
本文扼要介绍了具有三组任意方位节理岩体的弹塑性和弹粘塑性有限元算法，给出了模型试验的某些细节。
In this paper, an outline of elastic-plastic and elastic-viscoplastic algorithm formulations for rock masses with three sets of joint is given, and some details about model tests are described.
同时对某水电站引水隧道系统进行了三维粘弹塑性有限元数值模拟和三维弹塑性有限元数值模拟。
In this paper, a 3-d visco-elastoplastic FEM and a 3-d elastoplastic FEM are used to analyze the stability of the excavation structure of one hydropower station diversion tunnel system.
同时对某水电站引水隧道系统进行了三维粘弹塑性有限元数值模拟和三维弹塑性有限元数值模拟。
In this paper, a 3-d visco-elastoplastic FEM and a 3-d elastoplastic FEM are used to analyze the stability of the excavation structure of one hydropower station diversion tunnel system.
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