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对复合材料的损毁有很多人进行了研究,都想寻求一点规律性供设计师们使用,然而迄今为止,无论强度理论还是断裂理论在复合材料上应用都受到了一定的限制,原因就是复合材料结构复杂,不同类型的复合材料有不同的损毁过程,即使同一种复合材料,由于各向异性的影响,各个不同方向的损毁方式也是变化多端,用一个普遍的规律把所有的复合材料的损毁过程都包括进去,简直是不可能的。研究了三向碳/碳材料在X—Y面内和Y—Z面内裂纹沿着不同方向扩展造成的损毁现象。
Many studies have been conducted on the damage of composite materials. All of them want to seek some regularity for designers to use. So far, however, strength theory and fracture theory have been limited in composite materials due to the fact that composite materials Complex structure, different types of composite materials have different damage process, even with the same composite material, due to the anisotropic effect of the damage in different directions is also varied, using a common law all the composite damage process It’s impossible to include in it. The damage phenomena of three-directional carbon / carbon materials in X-Y plane and Y-Z plane in different directions were studied.