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Impact Experiments Into Borosilicate Glass at Three Scale Sizes.
- Source :
-
Journal of Applied Mechanics . Sep2011, Vol. 78 Issue 5, p51011.1-51011.10. 10p. - Publication Year :
- 2011
-
Abstract
- Glass impact experiments were designed at three different scales-0.22-cal, 0.375-cal, and 0.50-cal-named after the diameter of the bullets. Four experimental series were conducted at the three scale sizes: (1) Lexan®-only experiments; (2) monoblock glass experiments; (3) single impact bonded glass experiments, and (4) multi-hit experiments. The experiments were conducted to obtain residual velocity Vr as a function of impact (striking) velocity Vs, including sufficient partial penetrations to calculate a ballistic limit velocity V50. The Vs - Vr data were fit to the Lambert equation to obtain another estimate of V50. The objective of the experiments was to investigate whether a time dependency exists in glass damage/failure for ballistic experiments, and if so, quantify this dependence. No scale effect was observed in experimental results for the Lexan®-only experiments. But a variety of scale effects were observed in the glass impact experiments, suggesting that failure is time dependent within the timeframe of ballistic events [ABSTRACT FROM AUTHOR]
- Subjects :
- *GLASS
*BALLISTICS
*PROJECTILES
*SPEED
*PENETRATION mechanics
Subjects
Details
- Language :
- English
- ISSN :
- 00218936
- Volume :
- 78
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Mechanics
- Publication Type :
- Academic Journal
- Accession number :
- 66627529
- Full Text :
- https://doi.org/10.1115/1.4004281