PENETRATION AND PERFORATION STUDIES OF THIN GLASS TARGETS
Abstract
Steel spheres 3/32 inches in diameter were accelerated to velocities in the range of 0.1 to 2.5 km/sec. and impacted normally upon ordinary plate glass targets 4 inches square and 3/64, 1/16, 1/8, 1/4 and 1/2 inches thick. Tungsten spheres 1/16 inches in diameter were also impacted in the same manner as the steel spheres at velocities from 2.0 to 2.5 km/sec. into 1/4- and 1/2- inch thick glass. Steel BB shot 1/4 inch in diameter were impacted in the same manner as previously described into the 3/64-inch thickness at the 0.1 km/sec. velocity range. It was found that the kinetic energy lost by the pellet during perforation of the target was a function of the impact velocity to the second power. Therefore, parabolas could be used to approximate these curves. The plot of the minimum velocity of perforation as a function of target thickness was found to be a straight line relationship. The manner in which the energy dissipates in the glass was qualitatively explained.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1958
- Accession Number
- AD0609024
Entities
People
- Emerson T. Cannon
- Merlin D. Fullmer
- William S. Partridge
Organizations
- University of Utah