Ballistic performance of hybrid structure with perforated panel

Motivated by the active demand for the high performance and lightweight structures in the protection fields, this study experimentally and numerically investigated the ballistic performance of a novel ceramic-metal hybrid structure compounded with perforated panel. Though, the perforated panel could lead to the obvious deflection and serious erosion of the projectile, the hybrid structure with perforated panel exhibited only slightly better performance than that with normal panel due to the limitation of perforated panel to the rotation of the whole projectile. The research about the anti-penetration characteristics of hybrid structure with perforated panel indicated that the separation distance, panel structure and striking angle could affect the structure performance. The performance of the target would significantly enhance with increase of the panel thickness, panel hole size and projectile initial obliquity, if the separation distance between the panel and frame was large enough. Finally, the performance of the hybrid structure with optimized perforated panel was explored, and the results exhibited that the optimized structure showed 15% better performance and twice more deflection angle of projectile than the original structure with normal panel.