Numerical Examination of Influence of Warhead Shape on Penetration Performance of TC4-Al3Ti Laminated Composite Plate

Since TC4-Al₃Ti laminated composite has a low density and a high strength, it is frequently utilized in armor protection materials. Ballistic impact testing of TC4-Al₃Ti laminated composite boards was conducted using a first-stage light gas gun test bench in order to better investigate the penetration resistance of the laminated board. Additionally, LS-DYNA software was utilized to establish a finite element model that was close to the conditions of the ballistic impact test. Through a comparison of the projectile′s residual velocity and the target plate failure pattern determined by both simulation and experimentation, the efficacy of the finite element model is confirmed. Based on this, the impact of the shape of the warhead on the target plate’s resistance to penetration is examined. The findings indicate that the TC4-Al₃Ti laminated composite plate has the best resistance to flathead projectiles in the speed range of this investigation, followed by semi-spherical projectiles, and the lowest resistance to spherical projectiles.