Numerical Simulation on Balistic Performance of SiC/Light Metal Laminated Composite Armor against .30 APM2

Abstract

Ceramic/metal laminated composite armor systems have great importance and potential in defense technology due to their high ballistic performance and lightweight. In this study, it was aimed to determine the ballistic performances, limits, and perforation types of light metals (with densities below 5.0 g/cm3) used as ductile backing plates in laminated composite armor systems. In the numerical analysis, SiC tiles of 5 and 10 mm thickness were used as the front layer. Al5083-H116, Mg AZ31B, and Ti6Al4V light metal alloys in different thicknesses were used as the backing layer. While using the Johnson and Holmquist (JH-1) material model in SiC ceramic tiles, the Johnson-Cook (JC) material model was applied for “.30 APM2” bullet components and metal layers. The analyzes were performed with Ansys/Autodyn software. As a result of the simulations, among all the laminated armor systems providing full protection against “.30 APM2” ballistic threats with a collision speed of 878 m/s, the lowest areal density was determined as 54.245 kg/m2 in 10 mm SiC/5 mm Ti6Al4V laminated composite armor.

Keywords

• Ballistic Performance
• Laminated Composite
• Finite Element Analysis
• Ti6Al4V
• Mg AZ31B

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