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- Title
FRACTURE PHENOMENA OF BRITTLE MATERIAL AGAINST A SHAPED CHARGE JET.
- Authors
JOON HONG CHOI; SOON NAM CHANG
- Abstract
In order to study the protection behavior of brittle materials against a shaped charge jet, the jet penetration and the fracture behavior have been investigated by the series of photographs taken by the IMACON high speed camera. The examined materials were glass, fused silica, and single crystalline quartz. The trend of crack growth in BK7 glass and fused silica indicated conical shape. In the case of the single crystalline quartz, it was observed that the crack grows fast along the axis of crystal growth. The velocity of shock wave (~ 6km/sec) into glass and fused silica was faster than the sonic velocity. However, the velocity of shock wave in the single crystalline quartz showed to be similar to its sonic velocity. The ballistic protection capability of single crystalline quartz showing fast crack growth has been evaluated to be lower than that of fused silica which has relatively slow crack growth, although the quartz has higher physical and mechanical properties.
- Subjects
OXIDE minerals; SILICON; FUSED silica; SILICON compounds; CRYSTAL growth; CRYSTALLIZATION
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2008, Vol 22, Issue 9-11, p1475
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979208046955