The acoustic emission also shows a decreasing rate, following the drop in stress-intensity factor.
随着应力强度因子的下降，声发射也随着减少。
Interference theory of application stress-intensity, analyze the traditional safety factor and the reliability simultaneously, reset the measuring index of safety factor.
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。
Stress intensity factor (k). A factor used in fracture mechanics to specify the stress intensity at the tip of a crack.
应力强度因子(K)：断裂力学中使用的一个因子，说明裂纹尖端处的应力强度。
Stress intensity factors at vertical crack tips and numerical results of pressure under punch are obtained.
最后得到垂直裂纹端点处的应力强度因子和压头下方的压力数值。
So the stress intensity factors can be obtained by the displacement discontinuities.
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。
In this article a solution is found of the stress intensity factors in five cases. The solution is based on Airy stress function and the method of weighted residuals.
求解了五种情况的应力强度因子，采用的方法是艾雷应力函数和加权残数法。
The result indicates that the maximum of dynamical stress intensity factor arrives behind the load time and increases with the size of thick wall cylinder.
结果表明动态应力强度因子的最大值在加载时间上有滞后性现象，它的最大值随厚壁筒尺寸增加而增加。
The results show that the stress intensity and stiffness are enough.
结果表明，刚架结构的强度和刚度是足够的。
Because of the complexity in mathematics and the physics, solving the three-dimensional dynamic stress intensity factors is certainly limit.
三维裂纹在动态断裂力学中由于其数学和物理上的复杂性，求解其动态应力强度因子受到一定的限制。
The results show that when the annular crack is away from the interface, the normalized stress intensity factors at the crack tips decrease with increasing time.
结果表明，给定长度的环形裂纹在尚未接触界面时，其两端正则化的型和型应力强度因子均随时间增大而减小。
Based on this kind of crack element, and by introducing parametric equation of ellipse, a new method for estimating stress intensity factor is proposed.
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。
We study stress intensity factor of thick wall cylinder with cracks under dynamic load.
研究了动载荷作用下带裂纹厚壁筒的应力强度因子。
Based on testing results, the relationship between velocity of granite subcritical crack growth and stress intensity factor, and the fracture toughness are obtained respectively.
根据试验结果，得到了花岗岩亚临界裂纹扩展速度与应力强度因子之间的关系和花岗岩的断裂韧度。
Based on the principles of transmitted caustics as well as photoelasticity, the two techniques in determining stress intensity factors (SIF) are compared.
以光弹性法及焦散线法的基本原理为基础，对两种方法在确定应力强度因子方面进行了比较。
This result supports previous fracture models that are based on absolute reaction rate theory and predicts an exponential dependence of crack extension rate on applied stress intensity.
此结果支持了基于绝对反应速率理论的光纤断裂模型，并预测了裂纹扩张速率与外部应力强度的关系。
The relative equation between stress intensity factor and displacement field near interface crack tip of bimaterials was derived firstly.
首先推导了双材料界面裂纹尖端的位移场和应力强度因子之间的关系式。
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.
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。
It is important for the design of pressure vessels to study stress intensity of this type of structure.
研究这种结构的应力强度对于压力容器的设计具有重要意义。
The results show that the accuracy for crack tip stress intensity factor using ANSYS software is enough for engineering designs and analysis.
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。
However, the calibration of the dimensionless stress intensity factor, which is an important mechanical parameter, is still in question.
但是，该试样的重要力学参数即无量纲应力强度因子的标定尚有问题。
Through the numerical solution of the integral equation, the stress intensity factors at the end points of the crack and intersection are obtained.
通过对弱奇异积分方程的数值求解，可得裂纹端点和交点处的应力强度因子。
In this paper, a boundary integral equation method is applied to compute the dynamic stress intensity factors of collinear periodic antiplane cracks.
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。
The stress intensity factors of both orthotropic and isotropic materials can be obtained from the present results.
正交各向异性和各向同性材料的应力强度因子均为本文的特例。
The approximate engineering approaches for stress intensity factor (SIF) of skin with multiple site cracks and skin and stringer with cracks are given.
给出蒙皮带有多裂纹和蒙皮带有多裂纹且桁条也带有裂纹时应力强度因子的近似工程估算方法。
Finally, formulas for stress intensity factors are deduced.
最后，得出了应力强度因子计算公式。
The influence of cold expansion on the stress intensity factor distribution in crack tip was also analyzed.
分析了冷扩张对疲劳裂纹尖端应力强度因子分布的影响。
The transient displacement field and the dynamic stress intensity factor at the moving crack tip are obtained.
给出了瞬态的位移场和运动裂纹尖端的动态应力强度因子。
The loading state of specimen is important for calculation of the temporal evolution of dynamic stress intensity factor.
试样的受力状态对动态应力强度因子历史曲线的确定具有重要影响。
The loading state of specimen is important for calculation of the temporal evolution of dynamic stress intensity factor.
试样的受力状态对动态应力强度因子历史曲线的确定具有重要影响。
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