Open AccessNumerical Simulation of Rod Jet Formed by Shaped Charge under Rigid Constraint
Author(s) -
Kai Chen,
Shuyou Wang,
Yawei Wang,
Ze Shi
Publication year - 2022
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 - 10.1088/1742-6596/2160/1/012040
Subject(s) - jet (fluid) , radius , curvature , mechanics , radius of curvature , materials science , boundary (topology) , position (finance) , head (geology) , shaped charge , geometry , physics , mathematics , mean curvature , chemistry , geology , mathematical analysis , explosive material , computer security , organic chemistry , finance , mean curvature flow , geomorphology , computer science , economics
In order to study the forming law of rod jet formed by shaped charge under rigid boundary constraint, ANSYS/LSDYNA finite element software is used to simulate the forming process of rod jet with ALE essential boundary, and the influence of structural parameters of shaped charge on rod jet forming is studied. The results show that compared with the free boundary constraint, the head velocity of rod jet increases by 63.5 % and the tail velocity increases by 59.3 % under the rigid boundary constraint. The head velocity and length-diameter ratio of rod jet decrease with the increase of the outside curvature radius of the liner, the thickness of the liner central position and the variable ratio of wall thickness. Furthermore, the tail velocity increases with the increase of the outside curvature radius of the liner, and decreases with the increase of the thickness of the liner central position and the variable ratio of wall thickness.