关于复合材料力学几个基本问题的研究

凡能进行两层次分析与计算的材料便可称为复合材料。复合材料力学则是一种两层次的力学理论。相（材料）通过复合（效应、工艺）形成复合材料。复合效应分为混合效应和协同效应，其相应的混合律和协同律是复合材料力学理论的奠基石，前者已形成理论体系，后者有待形成。本文所论及的随机扩大临界核理论可解释多种形式的协同效应。此外，本文还讨论了几个有关的力学问题。

STUDY OF SEVERAL BASIC PROBLEMS ON MECHANICS OF COMPOSITES

Materials which can be analysed and calculated by two levels are referred to as the composite materials,whereas the mechanics of composites is a mechanical theory of two levels. A combination of phase materials forms composite materials. The composite effect can be summarized as the mixed effect and the synergistic effect. The corresponding rule--ofmixtures and rules-of-synergism are the foundation stone of mechanical theories of composites. The former has already formed a theoretical system,but the later remains to form a system. The random critical--core theory discussed in the present paper can interpret various forms of the synergistic effects. In addition, the paper also discusses several relevant problems of mechanics.