... 十亿分之一秒 nanosecond 非线性破坏力学 nonlinear fracture mechanics 非均等节距螺桨 non-uniform pitch propeller ...
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An exact expression of energy release rate for geometrical nonlinear elastic fracture mechanics is obtained for an infinite plate with central crack under uniform stress normal to crack surfaces.
对含中心裂纹的无限大板在裂纹表面受均匀分布压力作用的情况，导出了几何非线性弹性断裂力学的能量释放率的一个精确表达式。
This paper discusses the fracture problem of a compressed bar containing a crack Within the realm of nonlinear elastic fracture mechanics.
本文对非线性弹性断裂力学范畴的承压裂纹杆的断裂问题进行了讨论。
Supposing the defects as the initial crack, using the theory and testing method of fracture mechanics, the nonlinear fracture process and character of frozen soil are investigated.
把这些缺陷简化为冻土中的初始裂纹，应用断裂力学理论和试验方法，研究冻土的非线性断裂过程和特征。
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