Research on damage to underwater targets by different combined shaped charge warhead

DOI:	10.11809/bqzbgcxb2024.05.025
Keywords:	underwater weaponry; shaped charge warhead; underwater penetration; combined liner shaped charge; water partitioned structure; numerical simulation
Abstract:	In order to study the penetration performance of the water bearing composite structure of the shaped charge torpedo warhead, the numerical calculation model of the shaped charge penetrating water bearing composite structure was established, and the process of jet forming and penetrating target was analyzed. The results show that, compared with the other two kinds of composite covers, the cylindrical and spherical composite covers have better penetration performance to the water containing composite structure, and the penetration depth to the after effect target is the largest. Compared with the other two types of combination, the length of the jet formed by the cylindrical and spherical hole hoods is 10.4% and 28.9% longer, and the head velocity is 20.6% and 54.3% higher, respectively. When penetrating the water bearing composite structure, the underwater cavity formed by the cylindric spherical dome and the radial expansion velocity of the water medium are the smallest, so the residual kinetic energy after penetrating the water bearing composite structure is the largest, and the penetration of the after effect target is the largest. Reasonable matching of the diameter d and height h of the cylinder can improve the penetration ability of the cylinder to the water containing composite structure. When d=22 mm and h= 16 mm , the maximum penetration depth of the cylindrical and spherical composite cover can be 411 mm. The conclusion can provide a reference for the selection of composite charge cover for shaped torpedo warhead.
Published:	2024-05-31
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