Experimental study on the influence of perforation by shaped charge onto reinforced concrete targets

DOI:	10.11809/bqzbgcxb2025.03.016
Keywords:	shaped charge; liner; penetration; hole diameter; reinforced concrete target
Abstract:	Based on a large number of penetration tests, the perforation performances of shaped charge structures onto reinforced concrete targets are investigated, and the influences of different factors on the penetration depth and hole diameter are analyzed systematically. The results show that: with the increase of the charge length, the penetration depth and hole diameter increase, but the increasing trend is no longer obvious when the charge length exceeds 1.2 times of its diameter. All other conditions being equal, the use of central detonation or low density bell liners gives a larger hole diameter; while the annular detonation or high density horn liner has a higher penetration depth. Moreover, with the increase of standoff, the hole diameter and penetration depth increase first and then decrease, however, the optimum standoff is related to the type of liner material. Based on the numerical simulation of jet forming, the relationship between the thickness of the penetrating target and the hole diameter is also given, and the kinetic energy loss per unit hole volume for C30~C40 concrete targets is obtained. The quantitative analysis results given above are based on existing experimental results and can be used as a reference for the design of large hole diameter shaped charge and evaluation of their penetration performance.
Issue:	Vol. 46 No. 3 (2025)
Published:	2025-03-31
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