摘要
为了研究RDX基聚黑铝炸药(JHL-X)的能量输出特性及其评估方法,通过绝热式量热仪、水下爆炸系统、空爆系统分别测试了JHL-X的爆热、水下爆炸能量、地面超压。结果表明:JHL-X在真空中的爆热值与在N_(2)中的爆热值基本一致,约为1.75倍TNT当量;在空气中的爆热值为8045.724 J/g,为1.93倍TNT当量,比真空和N_(2)中高10%。JHL-X水下爆炸中的冲击波能、气泡能分别为0.935、4.614 kJ/g,总能量为1.83倍TNT当量。空爆时,根据通过地面超压得出的TNT和JHL-X超压公式,得到1.5、2.0、2.5 m处的JHL-X的TNT当量分别为2.14、1.70、1.75,均值为1.86。采用水下爆炸和真空爆热法时,因外界环境不供氧,致使两种实验方法评估出的JHL-X炸药能量一致;而采用空爆和空气爆热法时,因外部环境供氧,致使含铝炸药中Al的反应增加,总能量提高,两种方法得到的实验结果相近。因此,在评估炸药能量水平时,需考虑炸药配方设计和实际用途,进而选择合适的评估方法。
In order to study the energy output characteristics of the RDX-based aluminum explosive(JHL-X)and its energy level evaluation method,the explosion heat value and underwater explosion of JHL-X were tested through adiabatic calorimeter,underwater explosion system,and air blast system.Energy,ground overpressure.The results show that the explosion heat value of JHL-X in vacuum is basically the same as that in N_(2),about is 1.75 times TNT equivalent;the explosion heat value in air is 8045.724 J/g,1.93 times TNT equivalent,which is 10%higher than vacuum and N_(2).The shock wave energy and bubble energy of JHL-X in an underwater explosion are 0.935 and 4.614 kJ/g,and the total energy is 1.83 times TNT equivalent.In an air blast,the TNT and JHL-X overpressure formulas derived from ground overpressure show that the TNT equivalents at 1.5,2.0,and 2.5 m are 2.14,1.70,and 1.75 times,respectively,and the average value is 1.86 times.In addition,the underwater explosion and the explosion heat in vacuum are not provided with oxygen from the external environment,so that the two experiment methods maintain consistency when evaluating the energy level of JHL-X explosives.The air blast and explosion heat in the air have oxygen supply from the external environment,which causes reaction of Al in the aluminum-containing explosive to increase,so the total energy increased,results of these two experiments are similar.Therefore,when evaluating the energy level of explosives,it is necessary to consider the explosive formulation design and practical use,then select different evaluation methods.
作者
吴星亮
王旭
徐飞扬
马腾
董卓超
徐森
刘大斌
WU Xingliang;WANG Xu;XU Feiyang;MA Teng;DONG Zhuochao;XU Sen;LIU Dabin(School of Chemistry and Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China;China National Quality Supervision Testing Center for Industrial Explosive Materials,Nanjing 210094,Jiangsu,China)
出处
《高压物理学报》
CAS
CSCD
北大核心
2022年第2期145-152,共8页
Chinese Journal of High Pressure Physics
基金
国防科技重点实验室基金(6142603200509,6142603180408)。
关键词
TNT当量
爆热
水下爆炸
空爆
能量评估方法
TNT equivalence
detonation heat
underwater explosion
air blast
methods of energy evaluation
作者简介
吴星亮(1994-),男,博士研究生,主要从事含能材料的能量输出特性研究.E-mail:wuxingliang94@163.com;通信作者:徐森(1981-),男,博士,教授,主要从事爆炸力学研究.E-mail:xusen@njust.edu.cn。
