BALLISTIC IMPACTS AGAINST THIN METALLIC ALUMINIUM 1100-H12 TARGET PLATE: A VALIDATION STUDY OF NUMERICAL SIMULATION USING LS-DYNA

Abstract

In this study, eight sets of numerical simulation analyses by using LS-DYNA were performed to predict the performances of four different types of projectiles head impacted against single and double circular target plates. The projectiles were impacted in three angles of incidence i.e. 0, 15 and 30 degrees relative to the positive horizontal x-axis. In order to validate the simulations, experimental tests result from a published paper was utilized, where the residual velocities of the projectile after it penetrated the plate and the deformation patterns failures of the target plate were duly compared. In general, the numerical simulations analyses for all eight sets of tests had managed to produce good agreement with respect to the experimental tests data from a published paper with an overall average percentage difference residual velocity of 16.14 % in predicting the residual velocities of the projectiles upon exiting the target plate.