基于空气激波管的GFRP层合板抗爆性能研究DOI:10.19936/j.cnki.2096-8000.20220628.031基于空气激波管的GFRP层合板抗爆性能研究田锐,魏刚*,张涵哲,吴华鹏,邓云飞(中国民航大学航空工程学院,天津300300)摘要:基于激波管原理自制了80mm口径的空气冲击波加载装置,并进行了冲击波峰值、速度等参数与破膜压力之间关系的标定。在此基础上,开展了GFRP层合板抗爆性能研究,并用3D全场应变测量系统获取了层合板的动态响应过程。结果表明:使用空气激波管产生的冲击波可以合理模拟爆炸波的加载过程;在冲击波峰值压力为0.93~3.93MPa之间时,GFRP层合板在冲击波加载过程中的挠度随冲击波压力的增大有S形增大的趋势,卸载之后残余变形很小;预制2mm小孔的层合板在峰值压力为3.5MPa的冲击波作用下,发生了撕裂破坏,说明初始损伤严重影响了GFRP层合板的抗爆炸冲击能力。关键词:爆炸力学;空气激波管;GFRP层合板;抗爆性能中图分类号:TB332文献标识码:A文章编号:2096-8000(2023)03-0068-08StudyoftheblastresistanceofGFRPlaminatesbasedonairshocktubeTIANRui,WEIGang*,ZHANGHanzhe,WUHuapeng,DENGYunfei(CollegeofAeronauticalEngineering,CivilAviationUniversityofChina,Tianjin300300,China)Abstract:Basedontheprincipleofshocktube,an80mmdiameterairshockwaveloadingdevicewasself-madeandtherelevantparameterswerecalibratedfortherelationshipbetweenthepeakvalueandvelocityoftheshockwaveandthebreakingpressureofthefilm.Onthisbasis,astudyoftheblastresistanceofGFRPlaminateswascarriedout,andthedynamicresponseprocessofthelaminateswasobtainedusinga3Dfull-fieldstrainmeas-urementsystem.Theresultsshowthattheshockwavegeneratedbyusingairshocktubecanreasonablysimulatetheloadingprocessofblastwave.ThedeflectionofGFRPlaminateduringtheshockwaveloadingincreasesaccordingtoS-typetrendwiththeincreaseofshockwavepressurebetween0.93MPaand3.93MPa,andtheresidualdeforma-tionisnotobviousafterunloading.Thelaminatewithprefabricated2mmsmallholessufferedteardamageundertheshockwaveofpeakpressureof3.5MPa,indicatingthattheinitialdamageseriouslyaffectedtheblastimpactcapa-bilityoftheGFRPlaminate.Keywords:explosivemechanics;airshocktube;GFRPlaminate;blastresistance收稿日...