氢化镁储氢型乳化炸药的爆炸特性研究

程扬帆; 马宏昊; 沈兆武

doi:10.11858/gywlxb.2013.01.006

氢化镁储氢型乳化炸药的爆炸特性研究

doi: 10.11858/gywlxb.2013.01.006

中国科学技术大学近代力学系，安徽合肥 230027

详细信息

通讯作者:
沈兆武 E-mail:zwshen@ustc.edu.cn

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出版历程
- 收稿日期: 2012-06-17
- 修回日期: 2012-10-09
- 发布日期: 2013-02-15

Detonation Characteristics of Emulsion Explosives Sensitized by MgH2

Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China

摘要

摘要: 通过理论计算和水下爆炸实验，初步研究了MgH2敏化储氢型乳化炸药的爆炸特性和爆轰反应机理。结果表明：与玻璃微球敏化的乳化炸药相比，MgH2敏化的乳化炸药水下爆炸的冲击波超压、比冲量、比冲击波能、比气泡能及水下爆炸比总能量显著增加，其中冲击波超压和水下爆炸总能量分别增加了20.5%和31.0%。MgH2储氢型乳化炸药的爆轰机理与玻璃微球敏化乳化炸药不同，MgH2在乳化炸药中起到了敏化剂和含能材料的双重作用，即MgH2在乳化基质中水解产生均匀分布的氢气泡，起到了敏化作用，同时氢气参与爆炸反应，提高了炸药的爆炸能量和做功能力。
- 储氢材料 /
- 乳化炸药 /
- 敏化作用 /
- 水下爆炸
Abstract: The theoretical calculations and underwater explosion experiments are performed to investigate the detonation characteristics of the emulsion explosive sensitized by MgH2. The results show that compared with the emulsion explosives sensitized by glass microspheres, the emulsion explosive sensitized by MgH2 has a great increase in underwater explosion shock wave overpressure, specific impulse, shock wave specific energy and specific bubble energy, and it is noticeable that the shock wave overpressure and shock wave specific energy increase by over 20.5% and 31.0% respectively. In addition, the detonation reaction mechanism of the emulsion explosive sensitized by MgH2 is also analyzed. MgH2 plays double roles in the emulsion explosive which acts as both sensitizer and energetic material. First MgH2 is hydrolyzed in the emulsion matrix, and then a lot of hydrogen bubbles appear and distribute evenly, and at last the emulsion matrix is sensitized and can be detonated by a detonator. The explosion energy is also improved, since H2 participates in the explosion reaction and alters the detonation reaction process of the emulsion explosive.
- hydrogen storage material /
- emulsion explosive /
- sensitization /
- underwater explosion

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参考文献(21)

Medvedev A E, Fomin V M, Reshetnyak A Y. Mechanism of detonation of emulsion explosives with microballoons [J]. Shock Waves, 2008, 18(2): 107-115.

Wang X G. Emulsion Explosives [M]. Beijing: Metallurgical Industry Press, 1993: 12. (in Chinese)

汪旭光. 乳化炸药 [M]. 北京: 冶金工业出版社, 1993: 12.

Zhang H, Xie X H, Guo Z R, et al. Effect of aluminum powder content on performance of emulsion explosive [J]. Chinese Journal of Energetic Materials, 2008, 16(6): 738-740. (in Chinese)

张虎, 谢兴华, 郭子如, 等. 铝粉含量对乳化炸药性能影响 [J]. 含能材料, 2008, 16(6): 738-740.

Lu M, L C X. The mathematical model for the formulation design of emulsion explosive [J]. Explosion and Shock Waves, 2002, 22(4): 338-342. (in Chinese)

陆明, 吕春绪. 乳化炸药配方设计的数学模型研究 [J]. 爆炸与冲击, 2002, 22(4): 338-342.

Zhou J X, Yu G H, Li P, et al. Experimental study of the aluminized explosive RDX/Al explosion under water [J]. Blasting, 2005, 22(2): 4-7. (in Chinese)

周俊祥, 于国辉, 李澎, 等. RDX/Al含铝炸药水下爆炸实验研究 [J]. 爆破, 2005, 22(2): 4-7.

Feng X S, Zhao S X, Diao X Q, et al. Experimental research of underwater energy of explosive containing boron/metal [J]. Chinese Journal of Explosives Propellants, 2009, 32(5): 21-24. (in Chinese)

封雪松, 赵省向, 刁小强, 等. 含硼金属炸药水下能量的实验研究 [J]. 火炸药学报, 2009, 32(5): 21-24.

Bjarnholt G. Explosives expansion works in underwater detonations [C]//Proceedings of the 6th Symposium on Detonation, San Diego, USA, 1976: 540-550.

Chi J C, Ma B. Underwater explosion wave by a spherical charge of composition B-3 [J]. Chinese Journal of High Pressure Physics, 1999, 13(3): 199-204. (in Chinese)

池家春, 马冰. TNT/RDX(40/60)炸药球水中爆炸波研究 [J]. 高压物理学报, 1999, 13(3): 199-204.

Wang W, Wang J L, Guo W, et al. Influence of Al content on the detonation pressure and detonation velocity of RDX-based aluminized explosive [J]. Chinese Journal of Explosives Propellants, 2010, 33(1): 15-18. (in Chinese)

王玮, 王建灵, 郭炜, 等. 铝含量对RDX基含铝炸药爆压和爆速的影响 [J]. 火炸药学报, 2010, 33(1): 15-18.

Liu L Q. Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications: USA, 20030037692 [P]. 2003-02-27.

Tan J M. Chemical reaction rate model and theoretical analysis of overdriven detonation about insensitive high explosives [D]. Changsha: University of Science and Technology of China, 2007. (in Chinese)

谭江明. 钝感炸药的化学反应速率和超压爆轰理论研究 [D]. 长沙: 国防科学技术大学, 2007.

Kim K. Development of a model of reaction rates in shocked multicomponent explosives [C]//Proceedings of the 10th International Symposium on Detonation, Portland, USA, 1989: 593-603.

Mader C L. Numerical Modeling of Explosives and Propellants [M]. New York, USA: Chemical Rubber Company Press, 1998.

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