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An Investigation of AL7075-T651 Plate Perforation Using Different Projectile Nose Shapes

In this study, the ballistic resistance of monolithic and double-layered plates made of AL7075-T651 are evaluated using the non-linear finite element code LS-DYNA®. Plate simulations are carried out using 20 mm diameter, 197g mass hardened steel projectiles with blunt and ogival nose shapes. Penetration simulations of 20 mm monolithic plates made of AL7075-T651 are performed with both Lagrange and ALE methods and the results are compared with literature experimental studies.