Consequently it has very important theoretical significance to research the unloading characteristics of rock mass with damage mechanics theory.

因此运用损伤力学理论研究岩体在卸荷过程中的特性具有重要的理论意义。

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Then, the present Damage Mechanics theory is briefly introduced , and the advantages of using damage mechanics in rotor fatigue strength analysis is also discussed.

最后，就汽轮机转子疲劳强度的损伤力学研究进行了展望。

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The continuous damage mechanics theory was applied in hydraulic fracture models and finally could make the results of fracture simulation meet actual conditions in recent years.

国外将损伤力学理论引入到水力裂缝模型中，使裂缝模拟更加接近实际，从而推进了水力裂缝动态行为的理论研究。

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