High-Precision Numerical Simulation and Verification of Granite Penetration of Different Shaped Charge Structures

In order to study the high-precision numerical simulation algorithms of different shaped charge structures, based on the fluid elastoplastic equations under the Euler grid, a high-precision numerical solution algorithm for shaped jet molding and granite penetration was constructed, and different shaped charge structures were simulated and verified by experiments. Two new shaped charge structures were designed and realized, and the comparative verification test of penetrating granite static armor penetration with the single-cone shaped charge structure was carried out, and simulation results were compared with test results. The results show that the errors of the high-precision numerical simulation algorithm and the experimental results are less than 12% in terms of stabilizing the opening diameter and penetration depth. Compared with the single-cone shaped charge structure, the jet stable opening aperture of type A shaped charge structure is increased by 45.2%, and the jet stable opening aperture of type B shaped charge structure is increased by 58.1% compared with that of the single-cone shaped charge structure.