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Ranking Methods of Ceramics and Experimental Optimization of a Laminated Target with Ceramics

Vergleichsmethoden für Keramiken und experimentelle Optimierung von geschichteten Targets mit Keramiken
: Hohler, V.; Stilp, A.J.; Weber, K.

Light Weight Armor Systems Symposium 1995. Proceedings
Shrivenham, 1995
Light Weight Armor Systems Symposium <1995, Shrivenham>
Fraunhofer EMI ()
ceramic; Keramik; laminated target; protection performance; rod projectile; Schichttarget; Schutzwirkung; Stabprojektil

The use of non-metallic materials in armor has become more and more of interest during the last years. The optimal application of such materials supposes the understanding of the interaction process between projectile and target. To achieve this goal, the depth of penetration method, the time-resolved observation method and the laminated target test are applied to obtain information on the interaction process, the protection ranking of the non-metallic materials and the optimal construction of real targets. These three methods are discussed and applied to a series of ceramics and composites. The projectiles are tungsten sinter alloy rods with length-to-diameter ratio L/D = 12.5; the impact velocities are 1500, 1700 and 1800 km/s. It is shown that the three methods look at special aspects of the problem and complement each other. The depth of penetration method mainly delivers the protection ranking of the non-metallic materials. The time-resolved observation with the flash X-ray techni que makes it possible to obtain pictures of the projectile inside the non-metallic material. Applying the fluid-jet model, the protection performance can be characterized by the dynamic strength parameter R. The laminated target test provides information on the non-metallic material ranking and the optimal construction of real laminated targets.