The theory of slip-line field is an effective method for problems of plane strain of perfect plastic solids, and the circle-fan field is used frequently.
滑移线理论是解刚塑性平面应变间题的一种有效方法，而圆扇形场则是常使用的。
The crack tip stress-strain field of elastic-plastic materials are analysed by finite element method in the plane stress condition.
用有限元方法对平面应力条件下弹塑性材料的裂纹尖端应力应变场进行了计算。
The variation is smaller in plastic relaxation than the elastic one under the same in-plane strain.
在相同的平面应变下，塑性弛豫引起的电荷分布不均匀性变化小于弹性变形。
On the basis of two fundamental assumptions: the plane strain and the film internal force, this paper states at first the basic principles of design for plastic DAMS filled up with water.
本篇从平面问题和薄膜内力两个基本假设出发，首先阐明充水橡胶坝设计的基本原理。
Endochronic plasticity based on non-yield surface is deduced into the displacement-based finite element method and the plastic strain direct method is proposed for the plane stress problem.
介绍了位移基有限元方法 ，并在位移基有限元中嵌入了无屈服面内时本构理论 ，并提出了相应于平面应力问题的直接代入法。
Based on the yield criterion and plastic potential theories, a plastic constitutional relation, yield condition and yield curve equation in plane strain for powder metallurgical material were derived.
粉末冶金材料屈服条件是粉末冶金材料广义塑性理论的基础，其数学表达式对粉末冶金材料广义塑性理论方法的建立有重要影响。
Based on the yield criterion and plastic potential theories, a plastic constitutional relation, yield condition and yield curve equation in plane strain for powder metallurgical material were derived.
粉末冶金材料屈服条件是粉末冶金材料广义塑性理论的基础，其数学表达式对粉末冶金材料广义塑性理论方法的建立有重要影响。
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