Tests and numerical simulation of oblique penetration of armour-piercing projectile into titanium alloy target

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (23) : 159-166.

LI Zhao1,SUN Xuguang1,ZHOU Zhongfeng2

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Abstract

Ballistic impact test of 7.62mm armour-piercing projectile penetrating titanium alloy plates were carried out to study the factors effecting the limit ricochet angle of titanium alloy plate, and the limit ricochet angle of titanium alloy target with different thickness was obtained. Simultaneously, LS-DYNA was used to simulate the armour-piercing projectile oblique penetrating titanium alloy target, and the validity of the model was verified by comparing with the experimental data. Then the influence of the incline angle and the thickness of the titanium alloy plate on the ballistic performance is discussed. It was shown that the penetration performance of armour-piercing projectile is effectively reduced with the increase of the inclination angle of the target plate. With the increase of the inclination angle of the target plate, the residual velocity and the angle of direction change of the projectiles after perforation decreases and increases, respectively. The critical ricochet angle of is related to the thickness of the target plate and decreases nonlinearly with the increase of the thickness of the target plate.

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mechanics of explosion / oblique penetration / titanium alloy plate / numerical simulation

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LI Zhao1,SUN Xuguang1,ZHOU Zhongfeng2. Tests and numerical simulation of oblique penetration of armour-piercing projectile into titanium alloy target[J]. Journal of Vibration and Shock, 2023, 42(23): 159-166

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