提出了计算失效率的快速收敛的迭代算法，并分析了失效率与广义强度和广义应力的均值及变异系数的关系。
What's more, the relation between the probability and the average values and variation coefficients of generalized stress and generalized strength is analyzed.
因此，在对局部结构进行疲劳强度分析时，应考虑错位对于应力集中系数的影响。
Thus, the stress concentration factor due to the misalignment should be considered in the analysis of fatigue life of the local structures.
应力指数法和疲劳强度减弱系数法是进行疲劳容器设计的重要方法。
Stress index method and fatigue strength weakened coefficient method are important methods for designing fatigue vessel.
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。
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.
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.
材料的抗拉强度随着材料缺口半径的增加及应力集中系数的降低而降低。
With the increase of notch root radius and the decrease of stress concentration coefficient, the tensile strength decreased.
PES背贴焊接缝合试验，得到了应力-应变曲线、背贴条宽度、焊接缝合强度系数；
The reasonable widths of backup strip are experimented with the strength factor of the welded seam for a particular kind of PVC/PES.
反射裂缝裂尖位于面层中且裂缝长度大于某一值时，应力强度因子随着摩擦系数的增加而减小。
The SIF decreases with the friction coefficient rising when the surface crack tip lies in the base and the reflective crack length is more than a certain value.
本文根据砼的双轴强度特性，导出了预应力受扭构件抗裂度提高系数的表达式。
The expression of coefficient of increase in cracking resistance in prestressed torsional members is derived on the basis of concrete characteristics under biaxial strength.
应用应力—强度干涉理论，将传统安全系数与可靠性同时进行分析，重新建立安全系数的度量指标。
Interference theory of application stress-intensity, analyze the traditional safety factor and the reliability simultaneously, reset the measuring index of safety factor.
并分析了待定权函数系数的求法，即结合有限元计算混合型裂缝应力强度因子方法求出待定的权函数系数，继而得到了矩阵型权函数。
The method to get the constant coefficients of weight functions is also analyzed, which is based on the SIFs by finite element method.
通过三维光弹实验测定了轴表面横向半椭圆裂纹的应力强度因子（SIF），并计算了与光弹轴裂纹几何及当地应力相对应的无限大体的SIF，从而求得SIF修正系数。
The SIF and its correction factor of the transverse surface semi-elliptic crack of a photoelastic axle are tested and studied with the method of three dimensional photo-elastics.
在磁化系数不变的情形下，超导体尺度越短，应力强度因子越大；
The stress intensity factors of finite superconductors are calculated in the process of zero-field cooling (ZFC) and field cooling (FC).
综合考虑了接触线应力集中系数、尺寸系数、表面质量系数和材料疲劳强度的影响，得到了接触线疲劳极限的统计特征。
Statistical characteristic of fatigue strength of contact wires was obtained by comprehensively considering such coefficients as stress concentration, size and surface quality.
试验得到的数据有：应力应变关系曲线、屈服强度、极限强度、弹性模量、延伸率和热膨胀系数。
The test data include the stress? Strain curve, yield strength, tensile strength, Youngs modulus, elongation and expansion coefficient.
探索出一种估算压坑中最大应力强度的方法：定义了压坑应力集中系数，通过MSC。
The stress concentration factor of the gun tube pit was defined. The FEM models of the pits were built by MSC.
针对饱和裂隙岩体中在卸荷后的渗透系数与应力强度因子的关系进行了理论研究。
The closed solution and intensity factors in coupling fields of the problems are obtained.
针对饱和裂隙岩体中在卸荷后的渗透系数与应力强度因子的关系进行了理论研究。
The closed solution and intensity factors in coupling fields of the problems are obtained.
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