Inverse modeling of penetration into 12.7 cartridges

In this article a study of the forces caused by penetration of steel penetrators into cartridges of brass has been carried out. Experimental data was compared with simulations using the Nike-2D code and with solutions from a provided cavity expansion theory for thin cylindrical shells. The Nike-2D simulations gave good agreement with the experimental results. By using an inverse modeling technique a constitutive model of the brass was established.