Underwater shock wave performances of explosives

Underwater explosion tests were conducted in a water tank withstanding the explosion of a 8-kg-TNT equivalent charge.The far-field pressure-time curves of TNT, RS211, HLZY-1 and HLZY-3 were measured with the PCB138 pressure gauges. The shock wave performance parameters and the respective similarity constants of various explosives were calculated. It is suggested that the underwater shock wave propagation of the aluminized explosives follows an exponential similarity rule, the shock wave performance of the aluminized explosives is better than that of TNT explosive, and the shock wave performance of HLZY-1 is best in the aluminized explosives researched in this paper.