Effect of Sharp Oval-nose Factor on Deflection Moment of The Penetration Projectile

ZHANG Ding-shan,QUAN Jia-lin,FU Liang, ZHANG Bo, XU Xiao

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Chinese Journal of Explosives & Propellants ›› 2023, Vol. 46 ›› Issue (9) : 834-839. DOI: 10.14077/j.issn.1007-7812.202211015

Effect of Sharp Oval-nose Factor on Deflection Moment of The Penetration Projectile

  • ZHANG Ding-shan1,QUAN Jia-lin1,FU Liang2, ZHANG Bo1, XU Xiao1
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Abstract

To study the ballistic deflection when penetration projectile with sharp oval-nose penetrates multilayer target, a theoretical model and a test method considering the effect of sharp oval-nose factor on deflection moment were established. The position of resistance center was proposed and the deflection moment with different sharp oval-nose factor was calculated under certain penetration conditions. The results show that there is an inflection point when the deflection moment changes with sharp oval-nose factor. Before the inflection point, deflection moment increases as factor increases, and after the inflection point, deflection moment decreases as factor increases. The magnitude of deflection moment changes with sharp oval-nose factor goes up when the radius of the projectile and impact angle increase, and the magnitude of deflection moment changes with sharp oval-nose factor decreases when the penetration velocity increases. The deflection moment has head-up effect when the projectile penetrates upward target, and the deflection moment has head-down effect when the projectile penetrates downward target.

Key words

explosion mechanics / penetration projectile / deflection moment / head shape factor / center of resistance

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ZHANG Ding-shan,QUAN Jia-lin,FU Liang, ZHANG Bo, XU Xiao. Effect of Sharp Oval-nose Factor on Deflection Moment of The Penetration Projectile. Chinese Journal of Explosives & Propellants. 2023, 46(9): 834-839 https://doi.org/10.14077/j.issn.1007-7812.202211015

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