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| Difference between RDX Based Aluminum Fiber Explosive and Aluminum Particle Explosive on Underwater Detonation |
| WAN Xiao-zhi, MA Hong-hao, SHEN Zhao-wu, LIN Mou-jin |
| Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China |
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Abstract In order to improve comprehensive properties of the traditional aluminized explosive, a new non-ideal composite explosive is obtained by that aluminum fiber instead of aluminum powder in traditional aluminized explosive. The pressure-time curves of aluminum fiber explosive, traditional aluminized explosive and RDX are measured by underwater explosion experiments and the peak pressure, impulse, specific shock wave energy, specific bubble energy, specific explosion energy of three types of explosives are obtained by analyzing the curves. The results show that the peak pressure, impulse, specific shock wave energy of aluminum fiber explosive is lower than traditional aluminized explosive’s because the reaction rate of aluminum fiber is slower than aluminum particle’s in the beginning and the duration of the pressure-time curves of explosive is short. The specific bubble energy of aluminum fiber explosive is slightly greater than traditional aluminized explosive’s because the specific surface area of aluminum fiber is less than aluminum particle’s lead to the Al of aluminum fiber being more, and the duration of the pulsation period of explosive is longer lead to the reaction of aluminum fiber being sufficient, so that the total energy of aluminum fiber explosive is closely equal to traditional aluminized explosive’s.
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Received: 08 November 2013
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2014, Vol. 33 
