Abstract
Metallic panels are often used for vehicle protection, designed to withstand a range of projectiles, from light firearms to armor-piercing (AP) rounds. However, these panels significantly increase the vehicle’s weight, potentially degrading performance and payload capacity. The armored vehicle market demands lighter, more fuel-efficient vehicles. This study focuses on optimizing a reference ballistic steel panel (RBP) by integrating ultra-high molecular weight polyethylene (UHMWPE) and boron carbide (B4C) ceramics to meet STANAG 4569 Level 3 standards while reducing areal density (AD) for ground combat vehicle (GCV) applications. Material characterization was performed on reference materials using a universal testing machine (UTM) and a Split-Hopkinson pressure bar (SHPB) with 3D digital image correlation (DIC) to evaluate performance at different temperatures, strain rates, and failure modes under varying stress triaxiality. The identified material parameters were used to develop finite element (FE) models, which were validated and then employed to optimize several panel designs. Three promising configurations identified through FE modeling include (i) BP1 - (BS600/BS550/UHMWPE), (ii) BP2 - (B4C/BS600/BS550), and (iii) BP3 - (B4C/BS600/BS550/UHMWPE). These configurations were manufactured and tested against AP rounds using a gas gun projectile launcher. As a result, two panels were developed with reduced areal densities, 26% and 37% lighter than the reference ballistic steel panels, while maintaining superior ballistic protection. The single-hit impact test data from this study will aid in the design and manufacture of a lightweight, highly protected GCV.
Get full access to this article
View all access options for this article.
