PENETRATION INTO DUCTILE METAL TARGETS WITH RIGID SPHERICAL-NOSE RODS

We developed penetration equations for rigid spherical-nose rods that penetrate ductile metal targets. The spherical cavity-expansion approx imation and incompressible and compressible elastic-perfectly plastic constitutive idealizations simplified the target analyses, so we obtai ned closed-form penetration equations. We compared predictions from ou r models with previously published penetration data and results from L agrangian and Eulerian wavecodes.