本文还建议了两个复合型初始断裂经验准则。
初步揭示了压缩状态下大理岩和砂岩的初始断裂特性。
Initial fracture property of marble and sandstone subjected to compressive loading is revealed primarily.
最后，应用概率断裂力学方法(PFMA)，对含初始裂纹体的直升机金属材料(铝合金)构件的疲劳裂纹扩展寿命进行可靠性分析。
Finally, applying Probabilistic Fracture Mechanics Approach (PFMA), the reliability analysis is carried out for helicopter metal material (aluminum alloy) structure having initial cracks.
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