Numerical Simulation of Anti-penetration Performance of Glass Fiber Composite Armor

Abstract

In order to study the anti-projectile performance of glass fiber composite armor under the penetration of armor piercing projectile, the structural characteristics and the ballistic characteristics of the material of the head armor of a certain type of tank were studied, and the LS-DYNA numerical simulation method was used to analyze the penetration depth change of composite armor under different impact angles, the velocity change and energy loss of projectile under different fiber-layer thicknesses. The composite armor has the best anti-projectile effect when the glass-fiber layer is 16. The composite armor cant't be penetrated while the impact angle is greater than 20°. The curve of penetration depth varying with the impact angle was fitted. The anti-projectile performance of armor was calculated by the method of horizontal equivalent density. The results show that the anti-projectile performance of the armor is equivalent to that of 150 homogeneous armor steel, which can provide support for the design of other armor structures.