Study on the penetration effect of liner’s penetrators with heavy metal materials to water steal plate medium

DOI:	10.11809/bqzbgcxb2024.06.009
Keywords:	shaped charge; liner material; heavy metal; water and steel plate media; dynamic features; penetration effect
Abstract:	Aiming at the penetrating characteristics and the damage effects of the shaped penetrators with different material densities on the water medium and the aftereffect target, a theoretical model of velocity attenuation and diameter change of the jet in the process of penetrating into the water medium was established. Combined with numerical simulation and experimental results, the damage power of the jet rod formed by tantalum alloy, tungsten copper alloy and copper liner to the aftereffect steel plate after penetrating a certain thickness of water medium under the condition of equal thickness or equal weight was compared and analyzed.The results show that the established theoretical model can effectively describe the velocity attenuation and deformation process of the jet. Compared with the copper material, the velocity attenuation rate and the change degree of the head diameter of the tantalum jet rod in the water medium are relatively small.Under the combined effect of jet penetration and followed water medium, the diameter of the perforation of the tantalum alloy liner for aftereffect targets has been increased by 20.5%, significantly enhanced the damage power of the underwater shaped charge warhead.
Issue:	Vol. 45 No. 6 (2024)
Published:	2024-06-28
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