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1. 前言复合材料叠层板是一种非均匀的各向异性材料,其铺层方式及顺序可按外载的需要进行设计,因此每种叠层板的强度特性是不同的。进行复合材料结构的强度分析时,需要知道叠层板元件的强度特性。这些特性可以从试验获得,但如能在给定单向层板特性的基础上,用计算的方法较准确的算出各种叠层元件的强度特性,这将给结构设计及分析带来很大的方便。叠层板是由很多正交各向异性的单层(lamina)按各种不同的方法叠压而成,因此,叠层板本身就是一个复杂的“结构”,加之它的破坏是个逐级破坏的过程,破坏机理又比较
1. Introduction Composite laminate is a non-uniform anisotropic material, the laying of the order and the way according to the needs of external design, so the strength of each laminate is different. For the strength analysis of composite structures, it is necessary to know the strength characteristics of the laminate element. These characteristics can be obtained from the test, but if given the characteristics of one-way laminates based on the calculation method used to more accurately calculate the strength characteristics of a variety of laminated components, which will bring great structural design and analysis Convenience. Laminates are made by laminating a large number of orthotropic laminas in a variety of different ways so that the laminate itself is a complex “structure,” plus its destruction is a step-by- The process of destruction and comparison