Studies of High-Velocity Impact in Wax

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Abstract
Penetration of wax pellets into wax targets was found to vary linearly with the cube root of the pellet mass and the pellet velocity up to velocities in excess of twice the sonic velocity in the wax target. The crater area varies directly as the impact velocity, but there is a marked increase in the constant of proportionality above the target sonic velocity. The volume of the crater per unit energy of the pellet was found to be 2.23×10−8 m3/joule for the lower velocity range and above the target sonic velocity the value was found to be 2.75×10−8 m3/joule. It was observed that a large part of the crater volume is created by deformation of the target material and that only a small part is due to ejection of the target material.

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