Shock Effects on Interfaces
Final rept. Dec 1973-Apr 1974
ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT COMMAND FORT BELVOIR VA
Pagination or Media Count:
Over 100 successful hypervelocity impacts at 2 to 10 kms have been made on steel armor in the NRL light gas-gun facility. The projectiles were approximately 0.5-to 1.0-gram spheres and other shapes of nylon, water, steel, ceramics, and other materials. The objective was to develop a better understanding of the physics of spallation. Numerous phenomena were delineated crater floor serrations and macrocracks, adiabatic shear, voids, and backface spallation. Predictive heuristic theory was developed. It is concluded that it is feasible to design a hypervelocity projectile that optimizes back backface spall and fragmentation.