Orthogonal optimization analysis on the jet penetration behaviour of biconical reactive liner

In order to improve the penetration depth and hole diameter of concrete target penetrated by reactive jet, a biconical reactive shaped charge was designed in this paper. Based on ANSYS-LSDYNA numerical simulation platform, orthogonal optimization design method was used to optimize the structure of biconical reactive shaped charge. The infl en es of the upper cone angle, lower cone angle, upper liner ratio of liner, liner thickness and charge length-diameter ratio on jet formation and penetration were obtained. On this basis, the three performance indicators of penetration depth, cross-sectional area of hole and damage area were analysed and discussed, and a set of optimal structural parameters were obtained. Numerical simulation results showed that the optimal biconical reactive shaped charge could cause penetration depth of 1075.88mm (5.97CD), the cross-sectional area of 0.070172m², and damage area of 0.084427m² to the semi-infini e hi n re e arge a 3CD s and ff. Compared with control variable method, the improvements of three performance indicators can reach 29.83%, 32.26% and 127.00% respectively.