Energy Output Characteristics of CL-20-based Aluminized Explosives with Different Al/O Ratios during Deep-water Explosion

doi:10.12382/bgxb.2021.0227

Abstract

Abstract: In order to study the energy output characteristics of CL-20-based aluminized explosives in the high hydrostatic environment unique to deep-water explosion. A deep-water explosion pressure tank is used to simulate a 500-meter deep-water environment，and six groups of CL-20-based aluminized explosives with different Al/O ratios are used for deep-water explosion experiments.The energy output law and energy output structure of explosiveduring deep-water explosion under high hydrostatic pressure are analyzed through the experimental data. The experimental results show that the peak pressure of shock wave，specific shock wave energy，specific bubble energy and mechanical energy of deep-water explosion climb up and then decline with the increase in Al/O ratio，and the peak pressure of shock wave conforms to the similarity relationship. When the Al/O ratio is between 0.24 and 0.88，both the lost energy and its rate of increase with the test distance increase first and then decrease，reaching the peak value at 0.67 and 0.46，respectively. Therefore，the utilization efficiency of far-field energy of deep-water explosion can be measured by changing the Al/O ratio. In addition，the energy utilization rate of deep-water explosion continues to decrease with the increase in Al/O ratio，and the mechanical energy remains high between 0.46-0.67. By adjusting the Al/O ratio，the energy output ratio of specific shock wave energy and specific bubble energy can be changed on the premise of maintaining high mechanical energy of deep water explosion.

Key words: CL-20-basedaluminizedexplosive, deep-waterexplosion, Al/Oratio, energyoutput

CLC Number:

TJ55

KAN Runzhe， NIE Jianxin， GUO Xueyong， YAN Shi， JIAO Qingjie， ZHANG Tao. Energy Output Characteristics of CL-20-based Aluminized Explosives with Different Al/O Ratios during Deep-water Explosion[J]. Acta Armamentarii, 2022, 43(5): 1023-1031.

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