The Resistance of Various Metallic Materials to Perforation by Steel Fragments; Empirical Relationships for Fragment Residual Velocity and Residual Weight
Abstract
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1961
- Accession Number
- AD0322781
Entities
Organizations
- Johns Hopkins University