This layer has material const ants which govern the stiffness across it and has zero thickness.
该层的材料常数用劲度常数来描述，其层厚为零。
Considering that the crack thickness is usually very small, it can be taken as a'surface defect' with zero thickness.
根据裂纹的特点，可以把它近似为一个没有厚度的面缺陷，其作用由分布在裂纹面上的等效电流偶极子层代替。
Based on the study of features of sheet metal parts and Zero Thickness Hypothesis, a new mechanism of naming and identifying topological entities of a feature model is proposed in this paper.
本文在对钣金件特征研究和“零厚度”假设的基础上，提出了一种钣金件拓扑元素命名和辨别的新方法。
Nonlinear rheological models of thick and zero-thickness structural planes are presented. And incremental expressions of finite element for simulating creep of the structural planes are derived.
提出了有厚度和无厚度地质缺陷的非线性蠕变模型，推导了模拟上述地质缺陷蠕变的有限元增量表达式。
Nonlinear rheological models of thick and zero-thickness structural planes are presented. And incremental expressions of finite element for simulating creep of the structural planes are derived.
提出了有厚度和无厚度地质缺陷的非线性蠕变模型，推导了模拟上述地质缺陷蠕变的有限元增量表达式。
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