Study on the Multi‐Hit Impact Resistance of Multi‐Configuration Ceramic Composite Armor

To enhance the multi‐hit impact resistance of ceramic composite armor, this article proposes a novel stepped interlocking structure designed to specifically address the interfacial weak zones in traditional spliced armor. The impact performance was systematically evaluated by comparing the ballistic responses of monolithic silicon carbide (SiC), conventional mosaic honeycomb structures, and this new configuration under both single and multi‐hit impact. Experimental results demonstrate that the stepped interlocking design effectively strengthens the interfacial region. When the projectile impacts the gap location of the original mosaic structure, the anti‐penetration performance is improved by 47% compared to the traditional mosaic structure. Moreover, the structure achieves excellent damage isolation, thereby significantly enhancing the integrity and reliability of the armor under secondary impacts. The study also reveals that monolithic SiC ceramics exhibit significant sensitivity to impact location in terms of anti‐penetration performance, a phenomenon not prominent in the macroscopic response of unitized spliced structures. This research provides a practically implementable design strategy for modular ceramic armor with enhanced multi‐hit reliability, offering direct value to the applied ceramics community in the development of lightweight protective systems.