The rolling contact fatigue life was found to be markedly related the subsurface crack propagationAngle.
疲劳寿命与次表面裂纹扩展角之间存在着明显的对应关系。
2
The propagationangle of the principal fault rupture through soil equals the dilation angle of the soil under the mean confining pressure.
主裂缝的总体传播方向与断层平面的夹角约等于土体在土层平均围压下的剪胀角。
3
Using the LFEM theory, the author provided the computing method of stress strength factor of crack and the criteria of crack instability propagation and propagationangle.