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 billet deformation behavior, the magnitude and distribution of effective strain and damage value were investigated by rigid-plastic finite element method during multi-axial compressions.
采用刚塑性有限元法研究了多轴压缩过程中的坯料变形行为、等效应变大小、分布以及损伤值。
For plastic deformation theory, it is assumed that the plastic strain tensor is proportional to the total strain deviation tensor and the ratio is a sealer 'function of the effective total strain.
对于形变理论，假定塑性应变张量与总应变偏量张量成比例，其比例因子是总有效应变的标量函数。
The theory of residual plastic strain can be used to predict the distortion of simple components, and the reverse deformation is an effective method for controlling the welding distortion.
通过对实例的分析，表明对于简单构件的激光焊接，残余塑变理论可以用来预测变形，反变形法是控制焊接变形的有效方法。
The theory of residual plastic strain can be used to predict the distortion of simple components, and the reverse deformation is an effective method for controlling the welding distortion.
通过对实例的分析，表明对于简单构件的激光焊接，残余塑变理论可以用来预测变形，反变形法是控制焊接变形的有效方法。
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