Numerical simulations of small projectiles impacting a multilayered target at hypervelocities

The effects of a hypervelocity (10-80 km/s) projectile of low mass (1 and 5 g) striking a multilayered target have been investigated. The two-dimensional numerical simulation was done with the Eulerian hydrodynamics computer program LASOIL. Target responses that were calculated include the time variant material deformation, pressures, shock-wave movement, and hole sizes. Parametric studies were done to determine the effects of projectile mass, velocity, and shape on target response as measured by these parameters