A computation program has been developed, using a two dimension boundary element method, for calculation of stress strength factor at the welding crackle tip.
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。
Mesoscopic damage size on the top of crack is analysed, the effective stress strength factor is defined, the mode I crack damage fracture criteria is presented.
以混凝土单轴拉压损伤为基础，给出了单元弹性损伤本构关系，分析了裂纹尖端损伤微裂区尺寸，定义了有效应力强度因子，给出了I型裂纹损伤断裂判据。
Using the LFEM theory, the author provided the computing method of stress strength factor of crack and the criteria of crack instability propagation and propagation angle.
本文根据砂岩储层的物理力学特征，运用断裂力学理论，给出了储层裂缝的应力强度因子的计算方法，定量地分析了开发过程中储层裂缝失稳扩展的判据、裂纹扩展方向。
Geological methods mainly include curvature method, structural stress modeling and strength factor computation of fault stress.
地质预测法主要有曲率法、构造应力场模拟法、断层应力强度因子计算法；
The results show that the recovery stress depends on alloy strength and shape memory effect, whereas alloy strength is a more important factor.
结果表明，回复应力与合金强度和形状回复率有关，但强度是主要因素。
The composite stress factor and pre-tensile force loss of the two diameter high strength bolts of M27 and M24 are experimentally determined in the paper.
本文对M27和M24两种直径高强度螺栓进行了复合应力系数测定和预拉力损失试验。
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。
This value is used to compare the strength of materials, but a safety factor is applied when making design calculations, to bring the working stress well below the limit of proportionality.
此值被用来比较材料的强度，但是当设计计算时，要用一个安全系数，使工作应力低于比例限制。
This value is used to compare the strength of materials, but a safety factor is applied when making design calculations, to bring the working stress well below the limit of proportionality.
此值被用来比较材料的强度，但是当设计计算时，要用一个安全系数，使工作应力低于比例限制。
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