Experimental and Numerical Study on the Influence of Liner Height on Explosively Formed Projectiles

Anotace: Explosively Formed Projectiles (EFP) are widely used in both military and civilian sectors for their ability to strike distant targets effectively. This study investigates EFP formation and penetration using Ansys Autodyn simulations and experimental validation. Focusing on the EFP warhead structure, it analyzes how liner height influences projectile performance. Results show that variations in liner height significantly affect the EFP’s velocity, penetration depth, and diameter in steel targets. The study finds that an optimal liner height between 0.2 and 0.3 times the liner diameter yields the best projectile shape and dynamics. These findings offer practical guidance for selecting liner geometry in EFP warhead design.