Numerical Analysis of SiC and UHMWPE Composite Ballistic Plates against 0.5 Caliber BMG Projectile

Abstract:

The aim of this study was to determine the optimal configuration of silicon carbide-ultrahigh molecular weight polyethylene (SiC-UHMWPE) plates to effectively withstand 0.5 caliber Browning Machine Gun (BMG) projectiles. Six composite plates with varying thicknesses were 3D modeled and assessed for ballistic resistance using finite element analysis in Ansys Explicit Dynamics simulation software. These plates were subjected to high-velocity impacts at 930 m/s using 7.62 mm projectiles. The findings revealed that an 11 mm SiC/80 mm UHMWPE plate provided comparable bullet-stopping performance to a standard 8 mm steel 4340/60 mm UHMWPE plate, but with a significantly lower areal density. The primary mode of failure observed in penetrated samples was petaling, consistent with known behaviors of composite armor under high-impact conditions.

• Periodical: Key Engineering Materials (Volume 988)
• Pages: 65-72
• DOI: https://doi.org/10.4028/p-LnPt8o
• Online since: September 2024
• Authors: Alianna Ronquillo, Maria Angelica Reyes, Denisse Jonel Pavia, Aljohn Punongbayan, Eduardo R. Magdaluyo Jr.*
• Keywords: Ansys Explicit Dynamics, Composites, Finite Element Analysis, SiC-UHMWPE Ballistic Plates

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