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[1]薛乐星,冯博,赵娟,等.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.[doi:10.14077/j.issn.1007-7812.2017.06.014]
 XUE Le-xing,FENG Bo,ZHAO Juan,et al.Energy Output Characteristics of Explosives under Plasma Initiation[J].,2017,40(6):83-86.[doi:10.14077/j.issn.1007-7812.2017.06.014]
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炸药在等离子体起爆下的能量输出特性()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
40卷
期数:
2017年第6期
页码:
83-86
栏目:
出版日期:
2017-12-29

文章信息/Info

Title:
Energy Output Characteristics of Explosives under Plasma Initiation
作者:
薛乐星 冯博 赵娟 封雪松 冯晓军
西安近代化学研究所, 陕西 西安 710065
Author(s):
XUE Le-xing FENG Bo ZHAO Juan FENG Xue-song FENG Xiao-jun
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
关键词:
爆炸力学等离子体起爆能量输出冲击波超压爆热
Keywords:
explosion mechanicsplasma initiationenergy outputshockwave overpressureheat of detonation
分类号:
TJ55;O38
DOI:
10.14077/j.issn.1007-7812.2017.06.014
文献标志码:
-
摘要:
为了得到炸药在等离子体起爆下的能量输出特性,选择空气中炸药冲击波超压和爆热作为能量输出的特征参数,金属丝电爆炸作为等离子体产生源,测定了TNT在镍铬合金丝(Ni-Cr)、钨丝(W)、钼丝(Mo)和铜丝(Cu)等离子体起爆下的空气中冲击波超压曲线,分析了金属材质对冲击波超压的影响;基于爆热量热仪和等离子体发生装置测定了TNT、RDX和HMX的爆热。结果表明,各类等离子体均可以起爆TNT,合金丝在等离子体起爆下的冲击波超压明显高于单质金属丝,冲击波峰值超压大小顺序为Ni-Cr > W > Mo > Cu;TNT、RDX和HMX在Ni-Cr等离子体起爆下的爆热值分别是4 304.1、5 491.7和6 254.8 J/g,爆热值均大于装药密度超过80%理论最大密度下的文献值,表明等离子体起爆有助于提高炸药的能量释放效率和爆轰完全性。
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 exploding 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 initiated 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 4 304.1, 5 491.7 and 6 254.8 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 initiation is helpful to improve the energy release efficiency and detonation integrity of explosive.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-08-02;改回日期:2017-09-03。
基金项目:火炸药燃烧国防科技重点实验室基金(No.61426030402)
作者简介:薛乐星(1991-),男,硕士,从事炸药爆轰性能研究。E-mail:xue_l_x@163.com
通讯作者:冯晓军(1976-),男,博士,研究员,从事炸药爆轰及爆炸性能评估技术研究。E-mail:bingqi204suo@163.com
更新日期/Last Update: 1900-01-01