应用数学和力学2025，Vol.46Issue(5)：661-675,15.DOI:10.21656/1000-0887.450289
考虑湿热老化的复合材料机匣包容性试验与数值分析
Tests and Numerical Analyses of the Composite Casing Containment Under Hydrothermal Environment
摘要
Abstract
To obtain the inclusion characteristics of carbon fiber resin matrix composite casing in service envi-ronment,2 high-speed impact ballistic tests were conducted before and after hygrothermal treatment,and the corresponding simulation model for the casing hygroscopicity partition hygrothermal test simulation model along with the finite element high-speed impact numerical simulation-analysis model,was established.The results show that,the hygrothermal treatment has significant effects on the impact resistance and energy absorption capacity of the carbon fiber resin matrix composite casing.Under the high-speed impact,the impact resistance and energy absorption capacity of the casing without hygrothermal treatment are better than those of the casing with hygrothermal treatment.The damage form of the casing under high-speed impact is dominated by the ten-sile failure of fiber and matrix,accompanied by a certain amount of fiber crush and in-plane shear failure,with little or no compression failure observed.The damage occurs in the vicinity of the impact area,and extends a-long the axial and circumferential direction of the casing.In addition,the tensile failure area of the matrix of the hygrothermally treated layer is significantly larger than that of the matrix of the untreated layer,which veri-fies the degradation of the mechanical properties of the matrix after hygrothermal treatment.关键词
航空发动机/抗冲击特性/复合材料机匣/湿热老化/弹道试验Key words
aero-engine/impact behavior/composite casing/hygrothermal treatment/ballistic impact test分类
力学引用本文复制引用
郑竟波,张颖,姜文龙,韦林,迟雪,伊文昭,刘璐璐,陈伟..考虑湿热老化的复合材料机匣包容性试验与数值分析[J].应用数学和力学,2025,46(5):661-675,15.基金项目
国家自然科学基金(52375150) （52375150）
中央高校基本科研业务费(NC2022001) （NC2022001）
