The corresponding constitutive equations based on finite deformation theory are presented.
由有限变形理论推导出单向压缩和平面应变有限元模型。
The keypoint to simulate the metal forming process by using finite deformation theory is to define the constitutive equations of the material.
该文以铅作为试验材料，测定单向压缩有限变形和双向受约束两种情形下的载荷位移曲线，建立了基于欧拉描述的铅有限变形本构方程。
The finite deformation theory and the Nakai's sub-loading constitutive model are used to investigate shear band localization in plane strain model tests.
基于有限变形理论和中井的下负荷面本构关系模型，研究了平面应变试验中黏土试样变形的局部化问题。
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