复合材料加筋壁板冲击损伤特性及损伤容限研究进展

Progress of Damage Tolerance Analysis of Stiffened Composite Laminates

根据近年来复合材料层合板和加筋壁板的冲击损伤特性及损伤容限方面的研究文献,从试验研究和理论分析两方面综述了其研究进展。将含冲击损伤复合材料层板压缩强度分析方法分为五类:宏观唯象法、子层屈曲法、开口等效法、软化夹杂法、累积损伤法,并分析了各类方法的特点和存在的问题。最后对有待进一步研究的问题作了展望。

According to the papers and reports on impact damage characteristics and damage tolerance analysis of composite laminates and stiffened panels at home and abroad,the present paper summarized the experimental results and theoretical considerations.Five kinds of methods used to determine the post-impact compression stress are summarized,such as macroscopically phenomenological method,sub-laminate bulking method,equivalent hole method,soft inclusion method and cumulative damage method.The characteristics and problems of these methods are analyzed.Finally,some prospects of the key research directions are discussed.