导弹用高硅氧/酚醛结构件贮存寿命评估  

Storage Life Evaluation of Silica Phenolic Component Used in Missile

作　　者：张凯[1] 佘祖新[1] 王玲[1] 何建新[1] ZHANG Kai;SHE Zu-xin;WANG Ling;HE Jian-xin(Southwest Institute of Technology and Engineering,Chongqing 400039,China)

机构地区：[1]西南技术工程研究所,重庆400039

出　　处：《装备环境工程》2022年第4期36-40,共5页Equipment Environmental Engineering

摘　　要：目的评估弹上高硅氧/酚醛玻璃钢结构件在25℃条件下的贮存寿命。方法针对弹上高硅氧/酚醛玻璃钢结构件,开展90、110、130、150℃4个温度水平的加速老化试验,分析玻璃钢结构件的性能变化规律,建立半经验数学模型,利用阿罗尼乌斯模型评估其在常温下的贮存寿命。结果高硅氧/酚醛玻璃钢结构件的初始弯曲强度为181.2MPa,且随时间表现为先快速上升、然后缓慢下降的退化规律。结论以弯曲强度保留率95%作为失效阈值,评估该玻璃钢结构件在25℃条件下的贮存寿命为66.6 a。In order to evaluate the storage life of high silica/phenolic FRP structural parts on the bomb at 25℃.This paper mainly focuses on the silica phenolic component used in the missile,through an accelerating aging test,based on the test results to evaluate the storage life of the component,and to provide support for life extension.The thermal aging tests were used to carry out the test at the temperature of 90℃,110℃,130℃and 150℃,the storage life was evaluated by using the empirical mathematical model and Arrhenius model.The results indicate that the bending strength of silica phenolic increases rapidly at first and then decreases slowly,based on the experimental results,the performance degradation model of silica phenolic component was established.Finally,taking the retention rate of bending strength 95%as the failure threshold,the storage life of silica phenolic component at 25℃is 66.6 years.

关 键 词：高硅氧/酚醛 弯曲强度 热氧老化 贮存寿命 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]