最后，得出了应力强度因子计算公式。
本文探讨了刚度导数法用于含裂纹铆接加筋板应力强度因子计算的问题。
This paper deals with the application of the stiffness derivation method to calculating stress intensity factor of cracked panel with riveted stiffeners.
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；
Geological methods mainly include curvature method, structural stress modeling and strength factor computation of fault stress.
研究结果表明，ANSYS程序裂纹尖端应力强度因子计算方法的计算精度可以满足工程设计和分析需要。
The results show that the accuracy for crack tip stress intensity factor using ANSYS software is enough for engineering designs and analysis.
结果表明，增加最小二乘拟合项次和合理选择数字图像相关计算子区域和步长大小可以提高应力强度因子计算精度。
The results show that increasing the number of least squares fitting terms and reasonable selection of digital image correlation subset size improve the accuracy of calculated stress intensity factor.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算，最后反推出叶片在旋转状态下振动应力值的大小。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
本文采用一种边界积分方程法，计算了共线周期反平面裂纹的动应力强度因子。
In this paper, a boundary integral equation method is applied to compute the dynamic stress intensity factors of collinear periodic antiplane cracks.
对矩形裂纹面进行了数值计算，得到了应力强度因子沿裂纹边界的分布规律。
Numerical calculation has been taken for rectangular crack and the distribution of stress intensity factors along the crack edge has been obtained.
本文应用分区广义变分原理，提出了求解含有裂纹的型材应力强度因子的计算方法。
A calculation method is proposed to determine the crack tip stress intensity factors for sections on the basis of zonal generalized variational principles.
给出了高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses were given out.
给出高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses have been presented.
基于这种裂纹单元，作者引入椭圆参数方程，推出一种计算裂纹前缘点应力强度因子的新方法。
Based on this kind of crack element, and by introducing parametric equation of ellipse, a new method for estimating stress intensity factor is proposed.
对利用三维光弹性试验数据计算应力强度因子k_i，提出一种新的算法——综合法。
A synthetic method to calculate stress intensity factor KI by use of the data obtained in the experiment of three dimensional photoelasticity is developed in this paper.
基于断裂力学和有限元原理，计算分析了纤维沥青碎石封层路面结构在不同条件下的应力强度因子。
Based on fracture mechanics and finite element theory, calculation and analysis stress intensity factor of fiber asphalt chip seal under different conditions.
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。
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.
基于裂纹表面位移间断的计算结果得到了裂纹前沿的应力强度因子。
So the stress intensity factors can be obtained by the displacement discontinuities.
作为应用，文中计算了坝踵界面裂缝的应力强度因子，得出了应力强度因子随坝基弹模、库水位和缝水压力的变化规律。
On top of that, this method is used to calculate the stress intensity factors of interface crack at the heel of gravity dam, and some useful conclusions are presented.
利用此式能较方便地计算出带裂纹机架的应力强度因子值。
With this formula the intensity factors of the rollhousings with a crack in the corner can be evaluated conveniently.
计算实践表明：选择适当的计算边界，用改变计算区域几何比例的方法可以求得稳定的应力强度因子。
The calculating example shows that a stable stress intensity factor can be obtained by selecting a proper calculating boundary and changing the geometric scale of the region.
裂纹网中主裂纹的应力强度因子可反映构件的损伤程度，然而由于裂纹间的屏蔽效应，直接计算裂纹网中主裂纹的应力强度因子是困难的。
The stress intensity factor of main crack, which is difficult to be calculated directly due to the shielding effect between cracks, can reflect the damage of components.
本文用边界配置方法计算了不同情形下含偏心裂纹椭圆盘受均布载荷时的应力强度因子。
In this paper, boundary collocation method is used to calculate stress intensity factors of an eccentric crack in an elliptical disc subjected to a uniform tension stress.
利用裂纹尖端的奇异元和线性元插值模型，给出了扭转刚度和应力强度因子的边界元计算公式。
Using the interpolation models for both singular crack tip elements and other crack linear elements, the boundary element formulas of the torsion rigidity and stress intensity factors were given.
采用复变函数及摄动方法，最后以幂级数形式给出应力强度因子的计算公式。
Stress intensity factors at the craek tips are computed by complex variable functions and perturbation method and formulas are given in power series forms.
本文用有限元与半平面边界元耦合法计算了坝体坝基应力，又结合边界配置法求出了坝踵应力强度因子。
In this paper, the stresses of gravity dam and dam foundation are calculated by the coupling method of finite element and half plane boundary element.
文中首先给出了杂交模式的裂纹尖端奇异单元的刚度矩阵，然后基于随机场的局部平均理论和一阶泰勒展开得到了应力强度因子均值和方差的计算公式。
The stiffness matrix of a hybrid crack-tip singular element is first derived, then by use of first-order Taylor expansion the mean and variance of stress intensity factors are formulated.
计算结果表明，等效应力强度因子与发动机点火顺序密切相关，其峰值随裂纹深度的增加而增大。
The numerical simulation results show that the equivalent stress intensity factors KIeq relates with the engine firing order, their peak value rises while the crack depth increases.
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.
由数字图像相关方法所得位移场提取不同载荷作用下裂纹尖端应力强度因子，并分析最小二乘拟合项数、数字图像相关计算子区域和步长大小对计算结果的影响。
The stress intensity factor was extracted from the displacement field, and the effects of the number of terms, subset size and subset spacing on the calculation results were analysed.
本文研究了计算半随圆表面裂纹应力强度因子的边界元方法。
In this paper, the boundary element method for calculating surface crack is studied and suitable location or the singular isoparametric elements, is presented.
为了计算构件裂纹断裂参量应力强度因子，利用有限元方法对矩形板中心裂纹断裂参量应力强度因子的计算进行了研究。
In order to calculate of the stress intensity factors fracture parameters, stress intensity factors in the center-cracked rectangular panel were studied by FEA method.
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