The Resistance of Various Metallic Materials to Perforation by Steel Fragments; Empirical Relationships for Fragment Residual Velocity and Residual Weight
JOHNS HOPKINS UNIV COCKEYSVILLE MD BALLISTIC ANALYSIS LAB
Pagination or Media Count:
Perforation data for steel fragments impacting on each of ten metallic materials have been collected and analyzed. The experimental data are characterized by fragment sizes from 5 to 825 grains, striking velocities as high as 12,000 fps, and obliquities of strike as high as 80 degrees. Two sets of estimating equations, used together, serve as a basis for several extensions or applications 1 the determination of impact conditions for which the fragment disintegrates during perforation 2 a comparison, for equal weight per unit area of target materials, of the resistance of target materials to perforation 3 a calibration of the resistance of a target material to perforation in terms of the maximum thickness of a standard medium that the residual fragment can perforate and 4 a more realistic consideration of the effect of an intermediate target on the potential of the fragment to damage a primary target.
- Metallurgy and Metallography
- Ammunition and Explosives