Abstract
Abstract Ballistic ceramic with high hardness, high compressive strength, and low density is one of the most important materials in modern armor due to its resistance against high-speed bullet penetration. However, its poor ductility results in extensive fragmentation during penetration, significantly reducing the effective protection area of the armor. In this study, a three-dimensional constraint was employed to investigate the influence of such constraint on the anti-penetration performance of ceramic/UHMWPE composite armor. Using the same winding method, three types of ceramic tiles were constrained with aramid fiber, and ceramic composite armor was prepared. The anti-penetration performance and ceramic panel damage mode of composite armor with different sizes were analyzed based on the GJB 4300A-2012 standard. The results show that the effect of fiber constraint on the ballistic performance of ceramic composite armor has a size effect. For small-size ceramic tiles, the amplitude of the enhancement in protection performance by fiber constraint is less than that of the decay in protection performance. As the size of the ceramic tile increases, its sensitivity to constraint decreases, and the ceramic volume involved in ballistic response increases, resulting in improved ballistic performance of the armor. The constraint effect also plays an important role in maintaining the integrity of the armor structure. After bullet impact, the armor maintains higher structural stability due to the reinforcing effect of fiber, not only enhancing its single-shot resistant ability but also significantly enhancing its resistance to continuous impacts.
Published Version
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