Ballistic performance of multi-layered metallic plates impacted by a 7.62-mm APM2 projectile

E. A. Flores-Johnson, M. Saleh, L. Edwards

Research output: Contribution to journalArticleResearchpeer-review

102 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1022-1032
Number of pages11
JournalInternational Journal of Impact Engineering
Volume38
Issue number12
DOIs
Publication statusPublished - Dec 2011
Externally publishedYes

Keywords

  • 7.62-mm APM2 projectile
  • Ballistic resistance
  • Multi-layered plates
  • Numerical simulation

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