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2 results on '"BALLISTICS"'

1. DOP Test Evaluation of the Ballistic Performance of Armor Ceramics against Long Rod Penetration.

Author

Fenglei Huang and Liansheng Zhang

Subjects
*CERAMICS, *BALLISTICS, *PENETRATION mechanics, *ALUMINUM oxide, *PHYSICS
Abstract

A series of DOP tests with lateral confinement have been carried out and a linear relation between the residual penetration in RHA and the alumina thickness has been obtained. The rod configuration and the initial transient impact are the two factors that cause the gradual decrease of the differential efficiency factor (DEF) when the ceramic thickness is increased in literature. A new improved DEF definition is proposed to characterize the thick tile ceramic ballistic performance based on a more physical analysis. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2006
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2. THE EFFECT OF LOW-ANGLE YAW ON THE ARMOUR PENETRATION OF LIGHT ARMOUR-PIERCING PROJECTILES.

Author

Watson, Celia H., Bates, Laurence, and Horsfall, Ian

Subjects
*BALLISTICS, *PROJECTILES, *CERAMICS, *YAWS, *QUANTUM tunneling, *LOGISTIC regression analysis, *PHYSICS
Abstract

The performance of 7.62×54r BS32 armour-piercing incendiary (API) projectiles against ceramic-faced armour is investigated in trials for yawed impacts. Controlled yaw of the projectile was induced by chamfering the rear of the projectile, producing strong asymmetric lift forces on the tail of the round during the intermediate ballistics phase. High-speed video recorded yaw in two orthogonal planes immediately before impact. Projectile yaw varied in a sinusoidal manner at approximately 3.5m wavelength with a maximum of 8-14° at approximately 10m from the muzzle. Logistic regression was used to determine the penetration probability curve and V50 ballistic limit velocity which was found to be 735 ms-1 for the un-yawed projectiles but only 685 ms-1 for the yawed projectiles. [ABSTRACT FROM AUTHOR]

Published
2010

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