AN INVESTIGATION OF PERFORATION MECHANICS IN THIN ALUMINUM PLATES
Abstract
The Nishiwaki theory of penetration was investigated for seven projectile shapes against three thicknesses of 6061-T6 aluminum target material. The projectiles were fired from a 50 caliber gun at impact velocities near 500 m/sec. Initial velocities and projectile velocity losses were measured by flash x-rays and chronographs. The same projectile shapes were also used to perforate identical targets quasi-statically with a laboratory universal testing machine. This provided the empirical information necessary to the application of the Nishiwaki theory. The basic Nishiwaki equations were found to be inaccurate for most projectile shapes. A modification of this theory was investigated and found to be accurate in predicting projectile velocity losses to within 8 m/sec at impact velocities near 500 m/sec. Additional proposed penetration models are presented but not investigated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1970
- Accession Number
- AD0707837
Entities
People
- Richard David Gabbert
Organizations
- Air Force Institute of Technology