复合材料层合板的开口补强研究进展

Cutout Reinforcement Research Progress of Composite Laminates

复合材料在航空结构中的应用越来越广,在复合材料层合板上开口对其结构力学性能的影响需引起研究人员的重视。针对国内外近十年来的研究工作,系统地回顾了复合材料层合板的开口力学性能及补强设计方法的研究进展,从开口区域应力集中、开口层板稳定性研究、失效模式及补强方法等方面做了阐述;并对未来含有开口的复合材料结构设计的研究提出了一些建议。

With the increasing use of large composite components in aircraft structure,the huge effect on the mechanical performance of the composite structure when cutouts are localized on the composite laminates should draw researcher＇s attention and it is extremely urgent that the reinforcement concerned the cutouts should be investigated.Focused on the research efforts at home and abroad over the last decade.The recent advance in mechanical behavior of the composite structure settled a cutout consist of stress concentration around the margin of cutout,the stability and failure modes of the composite laminates is reviewed systematically,incorporating the reinforcement strategies.Furthermore,several constructive suggestions are proposed with respect to research and designing on composite structure with cutouts.