Research on Influence of rotation velocity on projectile penetration ability

Abstract

This paper takes the 35mm armor-piercing projectile as the research object, and uses the ANSYS LS-DYNA dynamic analysis platform to simulate the process of the projectile penetrating the armored steel plate under different rotation speeds by using the Johnson-Cook constitutive model. The research results show that the rotation speed has a certain influence on the penetration performance of the projectile: the rotation speed will have different effects on the contact stress of the projectile target in the later period of penetration, resulting in different penetration resistance of the projectile with different rotation speeds;the penetration ability of the projectile first decreased and then increased with the increase of the projectile rotation speed. This research has certain guiding significance for improving the interception efficiency of anti-air armored targets of terminal air defense and anti-missile equipment.