... element stress matrix 单元应力矩阵 initial stress matrix 起始应力矩阵 stress-strain matrix 应力应变矩阵 ...
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It can automatically search the node of the new boundary through symbolic matrix, and calculate the unloading of the node by stress of element.
通过标志矩阵自动搜索新的开挖边界节点，并由单元应力计算出节点的卸荷荷载。
The finite element method is used to analyze the relationship between strength and stress of the particle reinforced iron matrix composites and the shapes, sizes and fraction volume of the particles.
采用有限元方法分析了颗粒增强铁基复合材料强度和应力与颗粒形状、尺寸以及体积分数的关系。
The stiffness matrix of a hybrid crack-tip singular element is first derived, then by use of first-order Taylor expansion the mean and variance of stress intensity factors are formulated.
文中首先给出了杂交模式的裂纹尖端奇异单元的刚度矩阵，然后基于随机场的局部平均理论和一阶泰勒展开得到了应力强度因子均值和方差的计算公式。
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