通过引入应力复数和应变复数的概念，提出了平面应力分析和平面应变分析的复数方法。
Complex number method for plane stress analysis and plane strain analysis is proposed by means of introducing the concepts of stress complex number and strain complex number in this paper.
本文应用主曲率分析技术、平面应力分析技术、构造滤波技术，从地质形态、力学角度、信号处理的角度给出了地质构造的裂缝发育评价。
This paper USES principal curvature, plane stress and structure filtering to evaluate the development of fracture at geology shape, mechanical and signal handle facet.
这种方法应用于平面应力问题的极限分析已在计算机上实现。
This method has been used in computers for limit analysis of plane stress problems.
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