Firm embedding behavior of annular grooved projectiles impacting ductile metal targets

Huang, Qi; Feng, Shunshan; Lan, Xuke; Chen, Chao-Nan; Dong, Yongxiang; Zhou, Tianfei

doi:10.1016/j.dt.2019.06.017

Cited by 4 publications

(1 citation statement)

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“…Armor piercing and penetration are the traditional research fields of weapons and ammunition, and kinetic energy penetration into multi-layer protective armor has been widely and deeply studied. With the advancement and development of protective technology and the new requirements for endpoint effects, a shaped projectile, the annular groove projectile (AGPs) [1], has emerged. Scientific researchers have extensively studied the effects of regular warhead attack and landing angles on penetration trajectory: Goldsmith elaborated on the theoretical research, numerical simulation, and experimental techniques of non-ideal projectile target effects such as oblique impact, moving target plate, and jump flight [2]; Chen summarized the engineering research issues of armor piercing and penetration since 2009.…”

Section: Introductionmentioning

confidence: 99%

Ballistic Characteristics on Oblique Penetrating Multi-Layer Aluminium Targets by Annular Groove Projectile

Xiao,

Feng

2023

Advances in Transdisciplinary Engineering

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With the development of complex terminal effects, the semi penetration effect of annular groove projectiles on multi-layer targets has obtained increasing attention. In this paper, based on the theory of cavity expansion, a comparative analysis model is established for the oblique penetration of annular groove projectile and ogive-nosed projectile into multi-layer targets. The FEM analysis software LS-DYNA is used to simulate and calculate the time history curves of projectile velocity, axis deviation angle, and axis angular velocity. In addition, the micro rheological behavior of the target material in the groove during oblique penetration was studied. The results show that the radial offset of the annular groove projectile is less than that of the pointed projectile, and the larger the landing angle, the greater the projectile offset. The penetration resistance of target decreases with the increase in layers of target, while the DOP and lateral deviation of the projectile increase. This analysis model can provide analytical basis for related applications.

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Section: Introductionmentioning

confidence: 99%