复合材料科学与工程Issue(10)：91-96,6.DOI:10.19936/j.cnki.2096-8000.20251028.014
复合材料机匣螺栓连接结构抗冲击能力数值分析
Numerical analysis of the impact behavior of composite casing with bolted structures
摘要
Abstract
In order to obtain the containment capability of the composite casing with bolted structures,the nu-merical analysis of the impact behavior of the bolted structures was carried out by using the simulated blade projec-tiles in the simulation software.It was found that:the simulated blade projectiles were rebounded impacting the 6 mm thick bolted connection structure of laminates with three different layups of[45/0/-45/90]12S,[-45/-0/45/90]12S and[90/45/0]16S and metal plate at 130 m/s,150 m/s and 165 m/s impact velocity,respectively.The simulated blade projectiles penetrated the laminates with the impact velocity of 180 m/s.As the impact velocity increases,the value of energy absorbed by the laminates during the impact process is larger,and the damage is more serious.Un-der the containment condition,the laminates with[45/0/-45/90]12S layup has the best energy absorption and im-pact resistance ability.Under the impact of the simulated blades,a large area of fiber breakage and delamination damage occurr in the laminates,which is mainly concentrated at the blade impact location and at the chamfered cor-ners of the mounting edges.The screws of the two middle-most bolts of the structure are subjected to high stresses during impact and plastic deformation occur.关键词
航空发动机/抗冲击特性/复合材料机匣/螺栓连接结构/铺层形式Key words
aero-engine/impact behavior/composite casing/bolted joint structure/lay-up form引用本文复制引用
郑竟波,韦林,迟雪,刘璐璐,赵振华,陈伟..复合材料机匣螺栓连接结构抗冲击能力数值分析[J].复合材料科学与工程,2025,(10):91-96,6.基金项目
国家自然科学基金(52375150) （52375150）
