Experimental study of fuel-air explosive
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Experiments on an explosion of a fuel-air explosive (FAE) are carried out in open field, and comparative analyses between solid fuels, liquid-solid fuels of different recipes, and TNT of the same mass are applied. The results show that the effect of the FAE explosion at 3–6 m from the explosion center is definitely more pronounced than that of a TNT charge of the same mass, and solid fuels are more effective than liquid-solid fuels. A new formula for the peak pressure of the air shock wave is derived through an analysis of numerous experiments. The maximum value of the TNT equivalent for the fuels examined is found to be 5.35. The dispersive effect of mixed fuels in air is better than of TNT of the same mass; the flames last longer as well. High-speed photography indicates that the lasting time of fireballs of solid FAEs with suitable prescriptions are close to that of fuels consisting of solid and liquid component. The reason for non-synchronization of the time of reaching the highest pressure caused by the explosion of mixed fuels and the moment when the fireball reaches the maximum diameter is analyzed. The single ignition mechanism is discussed.
Key wordsfuel-air explosives single ignition shock wave high-speed photography TNT equivalent
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- 1.Y. Wang and F. Ma, The Theory of New Conception Weapon, Enginery Industry Publ., Beijing (1997), pp. 485–488.Google Scholar
- 2.D. Gui, J. Liu, and Sh. Feng, “Research of power performance of several typical fuel air explosive,” Energ. Mater., 10, No. 3, 121–124 (2002).Google Scholar
- 3.J. Hui Junming, R. Liu, and G. Ge, “Study on increasing the power of FAE — selection of high energy fuels,” J. Nanjing Univ. Sci. Technol. (Nature Sci.), 19, No. 5, 472–476 (1995).Google Scholar
- 4.D. Gui, Sh. Feng, J. Liu, “The optimization selection of liquid fuels for high power FAE,” Chinese J. Expl. Propell. 25, No. 3, 14–16, 25 (2002).Google Scholar
- 5.M. A. Sadovskii, “Mechanical action of air shock waves of explosion, based on experimental data,” in: Collection of Scientific Papers in the Field of Explosion Physics [in Russian], Izd. Akad. Nauk SSSR, Moscow (1952), No. 1.Google Scholar
- 7.Explosive and Its Effect [in Chinese], The Eighth Department of Beijing Industry Institute, National Defense Industry Publ. Company (1979), pp. 259–260.Google Scholar
- 9.H. Zhao, Principles of Gas and Dust Explosion, Beijing Inst. of Technology Press, Beijing (1996), pp. 48–56.Google Scholar