Numerical simulation study on the influence of the variation rate of the liner thickness on the damage performance of shaped charge

Abstract To investigate the impact of the variation rate of the thickness of the conical liner on the damage performance of shaped charge jet during its formation process, using the numerical simulation software Autodyn to construct a numerical model for conducting simulation computations. Subsequently, the corresponding numerical simulation results were acquired, and parameters such as velocity, mass, and penetration depth in the numerical simulation outcomes of shaped charge jet formed from liners with different thickness variation rates were analyzed. The findings reveal that the velocity at the head of jet ascends as the variation rate of the liner wall thickness increases. Meanwhile, jet head diameter diminishes with the augmentation of the thickness variation rate, and the penetration depth expands in tandem with the growth of the thickness variation rate.