旋转弯曲疲劳强度是抗裂纹扩展能力的判据。
The rotating bending fatigue strength is the criterion of resistance to propagation of hot cracks.
在第二个临界载荷下，三个判据都满足的区域相互重叠，解理裂纹形核并扩展。
Under the second critical load, the regions, where the three criteria are satisfied, are overlapped each other and cleavage crack is nucleated and propagates.
利用当量直线裂纹扩展法研究复合型裂纹的能量释放率及相应的断裂判据。
The energy release rate and failure criterion for mixed mode are investigated by means of the method of equivalent linear crack extension.
在互动的疲劳和蠕变裂纹扩展的判据。
A criterion of crack growth at interaction of fatigue and creep is presented.
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.
本文分析了裂纹塑性疲劳扩展的力学机理，提出了裂纹塑性疲劳扩展的判据。
In this paper the mechanism of plastic fatigue crack growth (PFCG) was analyzed and an appropriate criterion was proposed. Elastic-plastic (incremental) finite-element method was used to study PFCG.
本文分析了裂纹塑性疲劳扩展的力学机理，提出了裂纹塑性疲劳扩展的判据。
In this paper the mechanism of plastic fatigue crack growth (PFCG) was analyzed and an appropriate criterion was proposed. Elastic-plastic (incremental) finite-element method was used to study PFCG.
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