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Ballistic performance of composite armor impacted by 7.62 mm armor projectile
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Document Title
Ballistic performance of composite armor impacted by 7.62 mm armor projectile
Author
Jinnapat A., Doungkom P., Somton K., Dateraksa K.
Affiliations
Department of Military and Aerospace Materials, Navaminda Kasatriyadhiraj, Royal Thai Air Force Academy, 171/1 Phahonyothin Road, Khet Sai Mai, Bangkok, 10220, Thailand; Faculty of Engineering and Technology, Pathumthani University, 140 Tiwanon Rd, Ban Klang, Amphoe Mueang, Pathum Thani, 12000, Thailand; National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
Type
Article
Source Title
Journal of Metals, Materials and Minerals
ISSN
8576149
Year
2023
Volume
33
Issue
2
Page
120-127
Open Access
All Open Access, Hybrid Gold
Publisher
Chulalognkorn University
DOI
10.55713/jmmm.v33i2.1698
Format
Abstract
The purpose of this study is to investigate the effectiveness of composite armor against 7.62 mm ballistic threats. A sandwich panel construction consisting of a 96% alumina ceramic strike face, an annealed aluminum alloy 7075 cubic lattice sandwich panel, and a thin aluminum backing plate were used to create hard armor. The ballistic test based on NIJ standard level III was performed using 7.62 mm x 51 mm NATO projectiles at an impact velocity of 847 ? 9.1 nrs-1. The influences of the alumina strike face panel with thicknesses of 7, 10, and 14 mm on the ballistic performance were investigated. The results of the ballistic test suggest that hard armor designs can resist a ballistic impact of 7.62 mm ? 51 mm NATO projectiles without penetrating them. With the increase in thickness of alumina ceramic tile, the deformation of the aluminum backing plate decreased. Furthermore, the annealed aluminum alloy 7075 cubic lattice sandwich panel could be able to absorb the residual kinetic energy of the projectile after it was eroded by the ceramic strike panel. The damaged targets after ballistic impact were presented. Collectively, these results indicate that the armor composites in this study may be used in military vehicle applications. ? (2023), All Rights Reserved.
License
CC BY-NC-ND
Rights
Authors
Publication Source
WOS