Numerical simulations of semi-armor-piercing projectile penetrating aircraft carrier target with different attack angle

摘要

Finite element method (FEM) models of semi-armor-piercing warhead penetrating aircraft carrier deck are established by numerical simulation method, which are validated by related experimental data. Base on the models, the process of semi-ARMOR-piercing warhead penetrating aircraft carrier deck with different attack angles are carried out. The results show that Attack angles have notable influence on penetration capability of the projectile. When the attack angel are 5°, 10°, 15°, 20°, and 25°, the values of residual velocity of the projectile decrease 1.7%, 6.9%, 17.8%, 34.6%, and 54.5%, respectively, and durative high accelerations come forth in the penetration process with varying degrees of structure distortion of the projectile. Ductility reaming damage mode and adiabatic plugging damage mode are exhibited in the penetration process. The FEM models and the results could provide reference for penetration effect research of semi-armor-piercing warhead penetrating aircraft carrier target.