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整体复合材料件越来越多地被用作现代航空航天器的主承力结构,而分层是其最易出现的破坏形式。本文作为整体复合材料结构分层特性研究综述的第一部分,重点介绍界面断裂力学和应力分析方法。论文首先对复合材料失效和分层研究进行了简要的回顾,然后详细介绍了界面断裂力学发展的历史、基本公式和在复合材料分层研究中的应用,并且介绍了几种界面裂纹尖端场的求解方法——J积分、修正的裂纹闭合积分(Modified Crack Closure Integral)和M积分法。其次,对应力分析在复合材料分层研究中的应用进行了简要的回顾。
The monolithic composite is increasingly being used as the main load-bearing structure of modern aerospacecraft, and delamination is its most vulnerable form of destruction. This paper, as the first part of the review on the study of layered structure of composite materials, focuses on the interface fracture mechanics and stress analysis methods. The dissertation first reviews briefly the failure and delamination of composite materials, and then introduces the history, basic formulas and application of interfacial fracture mechanics in details, and introduces several kinds of interfacial crack tip fields Solution - J integral, Modified Crack Closure Integral and M integral method. Secondly, a brief review of the application of stress analysis in the study of composite material stratification is made.