脱层区域假定为椭圆形状，本文研究了在双轴载荷作用下对称正交铺设层板脱层屈曲的临界载荷，脱层厚度、半轴比、子层角以及载荷比对临界载荷的影响均进行了研究。
The delamination is assumed to be elliptical in shape. In this paper the critical load of delamination buckling for a symmetric cross-ply laminate acted on by biaxial load is investigated.
应用双剪理论对岩石在三轴压缩载荷下的强度和破坏特性进行了理论分析，并将分析结果与已有实验作了对比。
The characteristics of the rock strength and failure under triaxial compressions are theoretically analyzed in detail with the twin shear theory and the results are compared with experimental data.
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