建筑结构在地震作用下的破坏主要是由结构的低周疲劳累积损伤引起的。
The main destruction of constructions suffering from earthquake is brought by the accumulated damage of structures under low cycle fatigue.
以不同应力水平下的破坏率相等进行损伤等效转换出发，建立了新的非线性累积损伤模型。
A new non-linear accumulate damage model was derived from the concept of equal failure probabilities under different stress levels.
该模型综合了变形、能量累积以及荷载历程对预应力混凝土构件损伤-破坏的影响，对不同的地震模式有更好的适用性。
This model synthesizes the effect of distortion, energy accumulation, and loading history to damage-failure of prestressed concrete member, thus may be applied to different earthquake patterns.
应用提出的全程分析方法和三维逐渐累积损伤理论，对层合板的冲击过程以及冲击后含损伤层合板在拉伸载荷下的破坏过程进行详细分析。
The impact damage process and residual tensile strength after impact of laminated composites are analyzed by the whole-process analysis method and 3D progressive damage theory.
应用提出的全程分析方法和三维逐渐累积损伤理论，对层合板的冲击过程以及冲击后含损伤层合板在拉伸载荷下的破坏过程进行详细分析。
The impact damage process and residual tensile strength after impact of laminated composites are analyzed by the whole-process analysis method and 3D progressive damage theory.
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