Theoretical model for the calculation of concrete target resistance and numerical simulation of penetration by shaped charge jets

A model to predict the resistance of concrete target based on the material properties was developed by using the spherical cavity expansion theory. The predicted values were compared with some experimental results to verify the reliability of the target resistance model. The formation of jet at different liner cone angles and the penetration of shaped charge jet into concrete target were numerically simulated with AUTODYN-2D code. The reliability of numerical simulation results of the formation of shaped charge jets was verified by comparing them with flash X-ray high-speed photograph results. The jet velocity distributions were obtained by numerical simulation results, and virtual points were then calculated. Simulation results are in agreement with the theoretical predictions. Results show that the cavity expansion model to predict the resistance of concrete target is feasible and reliable.