Combined with general four-node element around crack tip element, a new hybrid finite element method to study stress intensity factors for interfacial crack is introduced.
与四节点单元相结合，由此提出了一种新的求解应力强度因子的杂交元法。
The weight function formulas are worked out and can be used for all kinds of depth of crack, materials, assemblage excess, size of combined thick wall cylinder to compute the stress intensity factors.
本文用权函数法导出了由套装应力引起的组合厚壁筒内边裂纹的应力强度因子公式 ，这些公式可用于计算组合厚壁筒在不同裂纹深度、材料、过盈量和尺寸情况下的应力强度因子。
Combined with the analysis of original stress state of existing tunnel considering segment joints, the important internal causes of crack are found out.
结合对考虑拼接缝的既有隧道管片受力状态的分析，找到裂缝隔片产生在连接块上的重要内在原因。
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