Modeling of in-situ ballistic measurements using the Rajendran-Grove and Johnson-Holmquist ceramic models

This paper presents results from numerical simulations of a ballistic experiment in which a long-rod tungsten projectile strikes and penetrates a layered target consisting of two silicon carbide (SiC) ceramic tiles backed by an RHA steel block. In the experiment, the penetrating rod's tail-end velocity history was recorded by a specially designed Doppler radar system, the stress-time histories at the tile/tile and tile/steel interfaces were recorded using embedded stress gauges, and the rod's residual depth of penetration (DOP) into the steel block was measured. The 1995 version of the EPIC finite element code was employed to simulate this experiment. The results obtained from the numerical simulations using the Rajendran-Grove (RG) and Johnson-Holmquist (JH2) ceramic models were compared with the experimental data. This paper further discusses the abilities of the RG and JH2 models to reproduce the measured data from ballistic as well as plate impact experiments