摘要
为研究海上值班环境下振动对推进剂/衬层粘接界面的影响,开展了实验室条件下的振动加速试验,模拟了180天的海上振动情况,通过单向拉伸试验测试了粘接试件的最大应力强度。结果表明,单向拉伸时,随着应变增加,界面应力先上升,达到最大应力强度值后下降;随着振动时间增加,试件最大应力强度逐渐减小,对应的应变值也逐渐减小,振动试验对界面的应变特性影响较大;通过曲线拟合,得到了试件粘接强度随振动时间变化的公式σmax=677.2-0.23t。
In order to study the effect of vibration on the propellant/liner bonding interface in a marine duty environment,a vi⁃bration acceleration test under laboratory conditions was carried out.The 180-day sea vibration was simulated and the maximum stress strength of the bonded test piece was tested by a uniaxial tensile test.The results show that as the strain increases,the interfa⁃cial stress rises first,and reaches the maximum stress intensity value and then decreases.As the vibration time increases,the maxi⁃mum stress intensity of the test piece gradually decreases,and the corresponding strain value also decreases.The vibration test has a great influence on the strain characteristics of the interface.Through the curve fitting,the formulaσmax=677.2-0.23t of the bond strength of the test piece with the vibration time is obtained.
作者
刘磊
李金飞
王鑫
谭洁
LIU Lei;LI Jinfei;WANG Xin;TAN Jie(College of Coast Defense,Naval Aviation University,Yantai 264001;No.92635 Troops of PLA,Qingdao 266000)
出处
《舰船电子工程》
2020年第8期127-129,177,共4页
Ship Electronic Engineering
关键词
振动
单向拉伸
粘接界面
vibration
unidirectional stretching
bonding interface
