Open AccessInvestigation on formation process of a Ta-based dual phase alloy EFP liner
Author(s) -
XingBiao Hu,
C T Wang,
Yizhu He,
Yizhu He,
Zhanhu Guo,
Yunzhu Ma
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1507/3/032033
Subject(s) - materials science , curvature , shaped charge , alloy , penetration (warfare) , composite material , projectile , generatrix , radius , radius of curvature , penetration depth , phase (matter) , metallurgy , geometry , optics , chemistry , mathematics , computer security , organic chemistry , mean curvature , operations research , mean curvature flow , computer science , engineering , explosive material , physics
Explosively formed projectile (EFP) has advantages of insensitive to the height of explosion, small interference from reactive armor and large penetration diameter. In this paper, a Ta based dual phase alloy was employed as the charge liner material. The software AUTODYN was used to simulate the formation of EFP under the conditions of different curvature, liner thickness and curvature radius. The following conclusions were obtained:(1), the ratio of length/diameter of EFP decreases with increase of liner thickness.(2) The liner with unequal thickness was proposed, the liner thickness is reduced from the top along the generatrix. The formed EFP from such liner has higher length/diameter ratio, compared to liner with the uniform thickness and the same internal curvature radius. (3) The formed EFP of Ta-based alloy liner could penetrate steel target, the chemical reaction caused by residual mass of EFP could release a large amount of chemical energy.