This paper presents a result of researching the microcracking zone near the notch tip of rock specimen in compression shear fracture.
本文介绍了岩石压剪断裂试件切口端部微裂区的研究成果。
The initiation and propagation of fatigue cracks at the notch roots were also observed by using SEM method. It was indicated that the crack firstly initiated from the surface of notch tip.
采用SEM对缺口试样疲劳裂纹形成与扩展特征进行了初步分析，发现裂纹最先在缺口尖端表面形成。
To investigate a new type of low stress precision cropping system, it is necessary to obtain the feasibility that the heat stress was used to prefabricate the ideal crack of V-shaped notch tip.
针对研究新型低应力精密下料系统时，需要获得热应力预制V型槽尖端理想裂纹方法的有效性问题。
The notch sensitivity of HSC and steel fiber reinforced HSC and the strain field of HSC reinforced with steel fibers ahead of the crack tip have been analyzed.
分析了钢纤维高强混凝土和普通高强混凝土的缺口敏感性以及钢纤维对高强混凝土裂缝前缘应变场分布的影响。
A new strain energy function was used to analyze a rubber wedge contact with a rigid notch. We found the asymptotic equations near wedge tip, and solved the equations with numeric method.
利用一种新的橡胶材料应变能函数，对橡胶楔体与刚性缺口接触大变形问题进行了分析。得到了楔体尖端场的渐近方程，对渐近方程进行了数值分析，得到了尖角附近应力及变形分布。
Stress analysis in variation states at crack tip and notch crown tip is presented.
分析了椭圆孔口端点和裂纹端点处的变动态应力。
One of the tool tips is in contact with a projection in the notch, and the other one is in contact with the adjacent tool tip and the lateral side of the notch for the positioning.
有一个刀尖与缺口内的凸台相接触，另有一个与其相邻的刀尖与缺口侧面相接触，起到定位的作用。
In order to predict effects on machined surface by developed notch-crack, crack extension mechanism of notch-crack-tip was investigated in cutting brittle materials.
为预测缺口裂纹对加工表面形成的影响，研究了切削脆硬材料时缺口裂纹的扩展。
The strain gauges were attached near the tip of the notch in order to detect the time of crack initiation;
把应变片粘贴在裂纹尖端附近获得裂纹扩展时间；
An application of the equivalent strain energy density method for calculation of elastic-plastic notch-tip strains under tension loading is presented.
本文介绍了根据应变能密度原理估计拉载作用下缺口底部应力、应变的方法。
An application of the equivalent strain energy density method for calculation of elastic-plastic notch-tip strains under tension loading is presented.
本文介绍了根据应变能密度原理估计拉载作用下缺口底部应力、应变的方法。
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