CAJ | 학술논문

对柱形碳纤维缠绕复合材料气瓶进行了落锤冲击试验，应用10，15，20，25，30 J 五种能量对气瓶筒身段3处不同环向位置分别进行冲击。对冲击前后超声检测情况、冲击深度与冲击能量关系、内窥检测和剖切观察情况以及部分冲击位置热揭层观察情况进行了讨论分析。试验结果表明，冲击载荷作用下分层损伤主要发生在复合材料表层，低能量下，随冲击能量增大冲击凹坑深度增加；复合材料气瓶筒身段中部比筒身与封头连接处具有更好的抗冲击性；由复合材料表层损伤不能断定内部是否发生损伤。
대주형탄섬유전요복합재료기병진행료락추충격시험，응용10，15，20，25，30 J 오충능량대기병통신단3처불동배향위치분별진행충격。대충격전후초성검측정황、충격심도여충격능량관계、내규검측화부절관찰정황이급부분충격위치열게층관찰정황진행료토론분석。시험결과표명，충격재하작용하분층손상주요발생재복합재료표층，저능량하，수충격능량증대충격요갱심도증가；복합재료기병통신단중부비통신여봉두련접처구유경호적항충격성；유복합재료표층손상불능단정내부시부발생손상。
The drop -weight impact tests were conducted on cylinder carbon fiber composite over -wrapped vessel.Three axial locations on barrel of vessel were test with energy of 10,15,20,25,30 J. Comparative study of ultrasonic detection before and after impact,the curve of impact energy and depth of impact pit,inspection results with endoscope and of splited vessel,analysis of some parts with the thermal deply technique were discussed.The test results indicate that surface layers of composite were stratified af-ter impact,in the low energy condition,the depth of impact pit increases when impact energy grows.The impact resistance ability of middle part of composite vessel barrel is better that of connector of barrel and end socket.Whether the inner of composite is damaged cannot be distinguished from damage of surface layers.