复合材料压力容器封头连接的建模及失效分析  

Modeling and Failure Analysis of Head Connection of Composite Material Pressure Vessel of Aerocraft

作　　者：王冰冰[1] 林木[1] 孟祥瑞[1] WANG Bingbing;LIN Mu;MENG Xiangrui(Dalian Ocean University,Dalian 116023,China)

机构地区：[1]大连海洋大学,辽宁大连116023

出　　处：《机械制造与自动化》2022年第5期88-90,共3页Machine Building & Automation

基　　金：辽宁省高等学校科学研究项目(Q1201720)。

摘　　要：为验证某航空飞行器复合材料压力容器封头连接形式与结构的合理性,采用有限元分析方法研究复合材料封头连接的失效机理。通过对不同内压作用下的压力容器封头连接应变变化进行比较分析,发现螺栓强度、材料强度、螺栓宽径比等因素均会影响压力容器封头连接的失效破坏,这为复合材料压力容器封头连接结构的设计提供了理论依据。To verify the rationality of the head structure of composite pressure vessel of an aircraft, the finite element analysis method is applied to study the failure mechanism of composite head structure. Through comparative analysis of the strain changes of the pressure vessel head connection under different internal pressures, it is found that the bolt strength, material strength, bolt width-to-diameter ratio and other factors will affect the failure of the pressure vessel head connection, which provides a theoretical basis for the design of the connection structure of the composite pressure vessel head.

关 键 词：复合材料 压力容器封头 结构强度 失效机理 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]