Experimental study on explosion performance of thermobaric explosive
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摘要: 为研究温压炸药的爆炸特性，将25 g温压炸药在5.8 L的密闭爆炸罐中引爆，测试了真空和空气环境下的爆炸压力和爆炸温度，并通过气相色谱分析了爆炸后的气体产物。实验结果表明，温压炸药在空气环境下的平衡压力和平衡温度明显高于真空环境，并且空气中的氧气参与了炸药中铝粉的氧化反应，说明温压炸药在空气环境下存在后燃效应。Abstract: In order to investigate the characteristics of the thermobaric explosives, the 25 g charge of thermobaric explosive was ignited in the sealed explosion chamber of 5.8 L volume, and the explosion pressure and temperature were measured and the gas productions were analyzed by the gas chromatography under the vacuum and air conditions, respectively. The experimental results show that the equilibrium pressure and equilibrium temperature under the air condition are significantly higher than those under the vacuum condition, and the oxygen in the air participates in the oxidation of aluminum, so that there is after-combustion occurring when the thermobaric explosive is ignited in air.
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图 2 温压炸药爆炸压力随时间的变化
Figure 2. Explosion pressure of thermobaric explosive varying with time
图 3 温压炸药爆炸温度与时间关系
Figure 3. Explosion temperature of thermobaric explosive varying with time
表 1 不同氛围下气体产物的摩尔分数
Table 1. Mole fraction of gas product under different conditions
氛围 x(CH4)/% x(CO2)/% x(N2)/% x(CO)/% 真空 0.625 0 3.617 5 42.764 1 25.803 3 空气 1.551 5 0.029 2 33.556 9 26.283 2 
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表 2 不同氛围下气体产物的摩尔量
Table 2. Mole of gas product under different conditions
氛围 nal(O)/mol n(CH4)/mol n(CO2)/mol n(N2)/mol n(CO)/mol nrem(O)/mol nrea(O)/mol 真空 0.425 7 0.002 0 0.011 3 0.134 2 0.080 9 0.103 5 0.322 2 空气 0.519 7 0.007 1 0.000 1 0.154 0 0.120 6 0.120 8 0.398 9
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[1] Hahma A, Palovuori K, Solomon Y.TNT-equivalency of thermobaric explosives[C]//36th International Annual Conference of ICT Combined with 32nd International Pyrotechnics Seminar on Energetic Materials: Performance and Safety. 2006: 10-1-10-12. [2] Zhang F, Anderson J, Yoshinake A. Post-detonation energy release from TNT-aluminum explosives[C]Proceedings of the 15th APS Topical Conference on Shock Compression of Condensed Matter. 2007, 955(1): 885-888. [3] 李秀丽, 惠君明.温压炸药的爆炸温度[J].爆炸与冲击, 2008, 28(5):471-475. doi: 10.3321/j.issn:1001-1455.2008.05.015Li Xiuli, Hui Junming. Detonation temperature of thermobaric explosives[J]. Explosion and Shock Waves, 2008, 28(5):471-475. doi: 10.3321/j.issn:1001-1455.2008.05.015 [4] 阚金玲, 刘家骢.一次引爆云爆剂的爆炸特性[J].爆炸与冲击, 2006, 26(5):404-409. doi: 10.3321/j.issn:1001-1455.2006.05.003Kan Jinling, Liu Jiacong. The blast dlaracteristic of SEFAE[J]. Explosion and Shock Waves, 2006, 26(5):404-409. doi: 10.3321/j.issn:1001-1455.2006.05.003 [5] 阚金玲, 刘家骢, 曾秀琳, 等.温压炸药爆炸火球的特征[J].火炸药学报, 2007, 30(2):55-58. doi: 10.3969/j.issn.1007-7812.2007.02.015Kan Jinling, Liu Jiacong, Zeng Xiulin, et al. Fireball characteristics of a thermal-baric explosive[J]. Chinese Journal of Explosives and Propellants, 2007, 30(2):55-58. doi: 10.3969/j.issn.1007-7812.2007.02.015 [6] 王晓峰, 冯晓军, 肖奇.温压炸药爆炸能量的测量方法[J].火炸药学报, 2013, 36(2):9-12. doi: 10.3969/j.issn.1007-7812.2013.02.002Wang Xiaofeng, Feng Xiaojun, Xiao Qi. Method for measuring energy of explosion of thermobaric explosives[J]. Chinese Journal of Explosives and Propellants, 2013, 36(2):9-12. doi: 10.3969/j.issn.1007-7812.2013.02.002 -
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