Penetration of semi-infinite AD995 alumina targets by tungsten long rod penetrators from 1.5 to 3.5 km/s

Subramanian, R.; Bless, Stephan

doi:10.1016/0734-743x(95)99901-3

Cited by 52 publications

(33 citation statements)

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“…The experimental results show that the penetration resistance decreases with an increase in the impact velocity for both the monolithic and laminated ceramic structures. This is consistent with the hypothesis that the effective target resistance decreases as the impact velocity increases (for example, see, [18]) because the damage velocity also increases with impact velocity, as observed by Strassburger et al [17]. The experimental results from Table 2 are shown graphically in Fig.…”

Section: Baseline Testssupporting

confidence: 79%

“…This would imply that the resistance of ceramics to penetration should decrease with increasing impact velocity. Such a behavior has been observed experimentally by Subramanian and Bless [18] where they observed a decrease in the effective target resistance ðR t Þ values with increasing impact velocity for alumina targets. At very high impact velocities, Strassburger et al [17] report damage velocities approaching the longitudinal wave velocity in the ceramic.…”

Section: Monolithic Ceramicmentioning

confidence: 54%

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Penetration resistance of laminated ceramic/polymer structures

Yadav

Ravichandran

2003

International Journal of Impact Engineering

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Ballistic penetration experiments have been performed on ceramic tiles laminated with thin layers of polymer in between. The experiment involves shooting a cylindrical rod made of a tungsten heavy alloy (WHA) against an unconfined ceramic/polymer laminated structure that is backed by a 6061-T6 aluminum alloy cylindrical-block, at a velocity ranging between 1000 to 1200 m/s. The residual depth of penetration in the aluminum block is used as a measure of the resistance offered by the laminated ceramic/polymer structure to ballistic penetration. Penetration resistance of the laminated ceramic/polymer structures is compared to that of monolithic ceramic structures of the same total thickness. Experimental results demonstrate that penetration resistance of an unconfined ceramic structure can be improved significantly by laminating ceramic tiles with thin polymer layers in between. This enhanced performance of the laminated structure is attributed to a reduced wave propagation (and damage) velocity in the laminated ceramic/polymer structure and also to the crack arresting feature of the polymer layer. r

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Section: Baseline Testssupporting

confidence: 79%

Section: Monolithic Ceramicmentioning

confidence: 54%

Penetration resistance of laminated ceramic/polymer structures

Yadav

Ravichandran

2003

International Journal of Impact Engineering

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“…This phenomenon, called interface defeat and first reported by Hauver et al [1][2][3], has been investigated at FOI since the middle of the 1990s [4][5][6]. By use of a reverse impact technique [7] and targets with initially constrained ceramic cylinders (shrink-fitted in a steel sleeve) it has been shown that, for a given cylindrical projectile, ceramics of different types (e.g., titanium diboride and boron carbide) are characterized by different velocities, called transition velocities, that mark the transition between interface defeat and penetration [6].…”

Section: Introductionmentioning

confidence: 99%