Research on the Penetration Performance of Zirconium Liner

As the core part of the shaped charge warhead, the selection of the material of the liner has an important influence on the formation and penetration ability of the shaped charge jet. In this paper, metal zirconium is used as the material of the liner. The Autodyn-2D numerical simulation platform is used to simulate the jet formation and penetration ability of the zirconium liner under the shaped charge structure. By comparing the penetration depth and opening diameter of the same target with the conventional liner material, the penetration ability of different material liners is analysed. The results show that the zirconium liner has good penetration performance compared with the titanium liner, and has good opening performance compared with the copper liner, and the zirconium liner jet will respectively produce secondary hole expansion phenomenon and secondary necking phenomenon when penetrating thick steel target and thick concrete target; When the zirconium liner penetrates the steel target with high strength. the opening ability will gain, but the penetration ability will be impaired. Moreover, the tiny change of the target thickness has little effect on the residual velocity and the opening diameter of the zirconium liner head; The velocity loss of the jet head of the zirconium liner is closely related to the strength of the target plate and the thickness of the target plate. This relationship makes the zirconium liner more conducive to the penetration of medium strength and medium thickness targets.