Journal of Polymer & Composites Original Research Open Access

Design and Ballistic Performance Assessment of Pattern-Optimized Lightweight Composite Armor Using ANSYS Explicit Dynamic and AUTODYN

  1. Shah Nusrat Jahan Shanta Department of Nuclear Science and Engineering, Military Institute of Science and Technology (MIST), Mirpur Cantonment, Mirpur, Dhaka-1216
  2. Abdus Sattar Mollah Department of Nuclear Science and Engineering, Military Institute of Science and Technology (MIST), Mirpur Cantonment, Mirpur, Dhaka-1216

Abstract

This study investigates the ballistic performance of lightweight composite armor panels designed to defeat 9 mm full-metal-jacket (FMJ) threats using high-fidelity numerical simulations. Four different composite materials were arranged into panels of identical overall dimensions; only the internal segment pattern was varied to explore geometric resistance effects while keeping mass and material type controlled. Ballistic impact simulations were performed using ANSYS Explicit Dynamics and AUTODYN to capture high-strain-rate behavior, local perforation, delamination, and energy dissipation mechanisms. A systematic pattern screening identified a resisting layout that maximizes projectile energy absorption and minimizes rear face deformation. Based on that layout, an additional design iteration produced a lowest mass sample targeted at the BR2 class threat conditions for 9 mm projectiles (GOST BR series). Simulation outputs evaluated included residual projectile velocity, back-face deformation, strain, and damage maps, and component-wise energy absorption. Results demonstrate that pattern optimization without changing base material or panel footprint can substantially improve ballistic performance and enable significant mass reduction while maintaining protection against the specified 9 mm FMJ threat. The combined use of ANSYS Explicit Dynamics and AUTODYN provided complementary insight into early perforation events and later-stage structural fragmentation, informing practical design recommendations for lightweight composite armor. Future work will validate the numerical findings with controlled ballistic testing and refine manufacturing approaches for the optimal pattern identified.

Keywords

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