介绍了裂纹的类型、裂纹尖端应力场的奇异性。
This paper introduces the type of cracks and the singularity of stress filed at crack tip.
从裂纹尖端应力场和裂纹扩展两个方面，阐述了功能梯度材料弹性断裂分析的研究方法和主要结论。
The research methods and main conclusions of FGMS fracture analysis are reviewed from the aspects of asymptotic fields near the crack tip and crack expansibility.
通过构造反向传播神经网络，对裂纹尖端的应力场进行模拟，进而实现对裂纹尖端应力场函数的逼近。
The stress field around the crack tip is simulated via the constructed Back-Propagation Neural Network (BPNN) whereby achieving the approximation of the stress field around the crack tip.
结合最新研究成果，从裂纹尖端应力场和裂纹扩展两个方面，阐述了功能梯度材料弹性断裂分析的研究方法和主要结论。
Based on the latest research fruits, methods and main conclusions of FGMS fracture analysis are reviewed from the aspects of asymptotic fields near the crack-tip and crack expansibility.
当上下半平面材料参数相同时，可获得受弯曲载荷正交异性复合材料板裂纹尖端应力场，并利用有限元算例分析验证了理论结果的正确性。
When the upper and the lower half-planes are of the same parameters, the stress field of crack of orthotropic composite materials can be obtained. The derived equation is verified with FEM analysis.
用数值模拟方法研究了金属裂纹尖端的温度场和热应力场的分布情况。
The temperature field and thermal stress field on the crack tip in a metal was studied by numerical simulation method.
首先，对两端加锚后裂纹尖端的应力场做了一些相应研究，对两端加锚的模型破坏模式做了简短的介绍，为以后的工作提出了建议。
First of all, the study on the crack tip stress field under the model anchored by CFRP have been done, and then do a brief introduction about the failure mode of the model with the CFRP.
采用复变函数方法求解了脉冲放电瞬间裂纹尖端的温度场和热应力场。
The complex function method is used to solve the temperature field and thermal stress field around the crack tip at the moment when the pulse current is switched on.
对于各向同性塑性材料，缓慢扩展裂纹尖端的各向异性塑性应力场就变成理想塑性应力场。
For the isotropic plastic material, the anisotropic plastic stress fields at a slowly propagating crack tip become the perfectly plastic stress fields.
反映裂纹尖端附近区域应力场强度的物理量称为应力强度因子。它和裂纹大小、形状以及外应力有关。
A computation program has been developed, using a two dimension boundary element method, for calculation of stress strength factor at the welding crackle tip.
应力强度因子表征了裂纹尖端奇异应力场的强度，它是研究裂纹扩展规律和带裂纹构件强度的基础。
Stress intensity factor indicates the strength of the singular stress field at crack-tip, it is the basis of studying the law of crack propagating and the strength of the component with crack.
应力强度因子表征了裂纹尖端奇异应力场的强度，它是研究裂纹扩展规律和带裂纹构件强度的基础。
Stress intensity factor indicates the strength of the singular stress field at crack-tip, it is the basis of studying the law of crack propagating and the strength of the component with crack.
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