Damage Effects of Fluid filled Submunitions by High Velocity Projectile Impact

Zan Yang; Wang Hai-fu; Zheng Yuan-feng; Yu Qing-bo

doi:10.14429/dsj.70.12974

Zan Yang State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing - 100 081, People R China
Wang Hai-fu State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing -100081, People R. China
Zheng Yuan-feng State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People R. China
Yu Qing-bo State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People R. China

DOI: https://doi.org/10.14429/dsj.70.12974

Keywords: Hit-to-kill, Simplified payload, Explosively formed projectile, Yaw angle

Abstract

A series of tests investigating the damage effects of fluid-filled submunitions by high velocity projectile impact were conducted. An analytical model is presented, in which the yaw angle of the projectile was taken into account. Based on the analytical model, the influence of the strike angle, hit-point offset distance and projectile length to diameter ratio on submunition damage ratio were predicted. The analytical results showed a good agreement with the experiments. The submunition damage ratio strongly depends on the hit-point offset distance, showing a significant decrease with increasing hit-point offset distance. For large hit-point offset distance, increasing the length to diameter ratio of the projectile will effectively improve the submunition damage ratio. There is an appropriate yaw angle of the projectile in which the submunition damage ratio will be maximal.

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