Journal
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
Volume 38, Issue 12, Pages 1022-1032Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijimpeng.2011.08.005
Keywords
Ballistic resistance; 7.62-mm APM2 projectile; Multi-layered plates; Numerical simulation
Categories
Funding
- Defence Materials Technology Centre (DMTC)
- Australian Government's Defence Future Capability Technology Centre (DFCTC) initiative
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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. All rights reserved.
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