Application of the Martel dynamic hardness to the penetration problem

Abstract

Penetration of the undeformable kinetic energy projectile (KEP) into the target is considered as the “deep” indentation. It was shown by the example of aluminum alloys that the Martel dynamic hardness HMR_d can be used for description of this process. HMR_d for the target can be calculated from the relation , where m is the mass of the KEP, v is its rate before impact collision with the target, and V is the volume of the penetration channel. The ballistic limit V_C of the target with a given thickness l can be calculated by equation for the KEP with a given mass m and diameter d. Full text download