Effects of Ceramic Type on Fragmentation Behaviour during Ballistic Impact
Abstract
This work reports experiments in which different grades and types of ceramic are impacted by tungsten alloy projectiles, and the resulting debris is analysed to assess the influence of ceramic properties on the degree of fragmentation and the distribution of cracking in the ceramic. The experiments utilize two grades of titanium diboride, four grades of alumina, as well as toughened zirconia tiles and glass. Toughness is seen to have a large influence on tile fragmentation with the very tough zirconia tiles showing significantly less breakup, and the brittle glass showing excessive fragmentation. Whilst a correlation is established between toughness and degree of fragmentation, for small differences in toughness the shot to shot variation in fragmentation can obscure that relationship. For two cases, glass and AD85 alumina, the projectile did not deform and this allowed calculations of mean pressure resisting penetration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1992
- Accession Number
- ADA268655
Entities
People
- Barry J. Baxter
- Raymond L. Woodward
- Robert G. O'donnell
- William A. Gooch Jr.
- William J. Perciballi
Organizations
- Defence Science and Technology Group