复合材料损伤分析及其本构关系 第一部分:连续介质损伤力学方法和概率统计方法

Damage Analysis and Constitutive Relations of Composites Part I : Methods of Damage Mechanics of Continuos Medium and Probabilistic Statistics

论述了复合材料损伤的本质过程 ,从热力学基本定律出发 ,导得连续介质损伤本构关系 ;从随机平稳过程理论导得损伤的概率统计模型 ,且后者为前者提供了分析和计算的基础。

The inherent damaging characters of composite materials are presented in this paper, in which there are two methods. One, based on the fundamental laws of thermomechanics, the constitutive relation of continuos medium including damages is derived. And another, by the analysis of stochastic stationary process, the probalitistic model to predict damage evolution in composites is established. The latter can provide the fundaments of analysis and calculation for the former. Both of these macroscopic methods can be used as a simple and convenient way to predict the failure and life time of composite structures.