Ballistic performance of multi-layered metallic plates impacted by a 7.62-mm APM2 projectile
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Date
2011-12-01
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Publisher
Elsevier
Abstract
This paper presents a numerical investigation of the ballistic performance of monolithic, double- and triple-layered metallic plates made of either steel or aluminium or a combination of these materials, impacted by a 7.62-mm APM2 projectile in the velocity range of 775-950 m/s. Numerical models were developed using the explicit finite element code LS-DYNA. It was found that monolithic plates have a better ballistic performance than that of multi-layered plates made of the same material. This effect diminishes with impact velocity. It was also found that double-layered plates with a thin front plate of aluminium and thick back steel plate exhibit greater resistance than multi-layered steel plates with similar areal density. These predictions indicate that multi-layered targets using different metallic materials should be investigated for improved ballistic performance and weight-savings. Crown Copyright (C) 2011 Published by Elsevier Ltd.
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Keywords
Composite materials, Aluminium, Steels, Plates, Projectiles, Velocity
Citation
Flores-Johnson, E. A., Saleh, M., Edwards, L. (2011). Ballistic performance of multi-layered metallic plates impacted by a 7.62-mm APM2 projectile. International Journal of Impact Engineering, 38(12), 1022-1032. doi:10.1016/j.ijimpeng.2011.08.005