The effect of changing the size of access hole on the behavior of steel beam-column moment connections is studied through 3D nonlinear finite-element analyses of connection subassemblies.

对焊接孔尺寸变化的钢框架梁柱刚性节点进行了空间非线性有限元分析。

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The photoelastic coating method is used to study the phenomenon of stress concentration around the hole in the 3D braiding composite materials. Some results are obtained.

采用反射光弹技术考察了编织复合材料的孔边应力集中现象，得到了有益的结果。

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In the computations of 3d VLSI parasitic interconnect capacitance, it is very difficult to partition the boundary elements on a multi hole surface.

在3d VL SI互连寄生电容的边界元素法计算中，多孔平面的边界元划分是十分困难的问题。

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