火炸药学报2017，Vol.40Issue(6)：83-86,4.DOI:10.14077/j.issn.1007-7812.2017.06.014
炸药在等离子体起爆下的能量输出特性
Energy Output Characteristics of Explosives under Plasma Initiation
摘要
Abstract
To obtain output release properties of explosives under plasma initiation ,shockwave overpressure in air and heat of detonation were selected as characterization parameters of energy release ,and metal wire electrical explo-ding was used as a plasma source .Shockwave overpressure curves in air of TNT were measured under Ni-Cr alloy , W ,Mo ,and Cu plasma initiation .The effect of metal material on shockwave overpressure was analyzed .The heats of detonation of TNT ,RDX and HMX were detected based on the calorimeter of measuring the heat of detonation and plasma generator .The results show that all kinds of plasma can initiate TNT ,and shockwave overpresure initi-ated by alloy wire is significantly higher than that initiated by elemental metal wires .Shockwave peak overpressure order was Ni-Cr > W > Mo > Cu .The heats of detonation of TNT ,RDX and HMX under Ni-Cr plasma initiation are 4304 .1 ,5491 .7 and 6254 .8 J/g respectively .The values of heat of detonation are higher than literature values under detected condition of charge density of over 80% theoretical maximum density ,indicating that plasma initia-tion is helpful to improve the energy release efficiency and detonation integrity of explosive .关键词
爆炸力学/等离子体起爆/能量输出/冲击波超压/爆热Key words
explosion mechanics/plasma initiation/energy output/shockwave overpressure/heat of detonation分类
军事科技引用本文复制引用
薛乐星,冯博,赵娟,封雪松,冯晓军..炸药在等离子体起爆下的能量输出特性[J].火炸药学报,2017,40(6):83-86,4.基金项目
火炸药燃烧国防科技重点实验室基金(No.61426030402) （No.61426030402）
