Generally layered composite target consisting of camouflage, fiber reinforced concrete (FRC), boulder-mixed cement mortar, ultra-high performance fiber reinforced concrete (UHPFRC), high-density polyethylene (HDPE), and reinforced concrete is employed as a protective bunker to safeguard military personnel from projectile impact loading.…
Generally layered composite target consisting of camouflage, fiber reinforced concrete (FRC), boulder-mixed cement mortar, ultra-high performance fiber reinforced concrete (UHPFRC), high-density polyethylene (HDPE), and reinforced concrete is employed as a protective bunker to safeguard military personnel from projectile impact loading. This research focuses on numerical modelling to analyze the dynamic fracture behavior and assess the structural integrity of the layered composite target under projectile impact. The results demonstrate that the layered composite target exhibits superior protection against projectile impact loading compared to a monolayer reinforced concrete target of equivalent thickness. Furthermore, the utilization of locally available boulders in the cement mortar layer enhances the penetration resistance of the layered composite target. Conse- quently, the layered composite target can be a suitable replacement for monolayer reinforced concrete targets of equivalent thickness in scenarios involving projectile impact loading.