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Energy-absorption capability of thin laminates subjected to heavy-mass projectile impact of varying nose geometries.
- Source :
- International Journal of Crashworthiness; 2008, Vol. 13 Issue 3, p237-246, 10p, 10 Black and White Photographs, 2 Diagrams, 3 Charts, 3 Graphs
- Publication Year :
- 2008
-
Abstract
- This study evaluates the energy absorption, perforation and damage evolution created by cylindrical projectile of different nose geometries in woven roving mat/epoxy laminates with 0.45° orientation. A series of ballistic impact tests have been carried out on the laminate with projectile nose geometries representing hemispherical, conical, and conical with round nose and truncated tip. A gas gun projectile launcher set-up was employed to impact the target at different speeds. The damage pattern, perforation mechanism and ballistic limit for each type of projectiles have been studied. Truncated-nose projectile shows the highest ballistic limit while sharp-nose shows the lowest. A quasi-static punch test was carried out on targets with projectiles of above-mentioned nose geometries to assess the damage evolution at a constant strain rate. The maximum load required to cause perforation during punch test was noted for hemispherical-nose projectile. An in-depth layerwise analysis was carried out to analyse the damage in each layer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13588265
- Volume :
- 13
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- International Journal of Crashworthiness
- Publication Type :
- Academic Journal
- Accession number :
- 35651737
- Full Text :
- https://doi.org/10.1080/13588260801933568