Analysis of Anti-jet Penetration Characteristics of Axial Single-cell / Multi-cell Closed Structure

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Changxing, Zhao^1 ; Fucheng, Yin^1

School of Material Science and Engineering, Xiangtan University, Xiangtan, Hunan

411105, China^1

关键词: Closed structures;    Closed-cell structure;    Distribution phenomenon;    Energy equation;    Inner cavities;    Jet penetration;    Metal target;    Single cells;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/3/032035/pdf
DOI  :  10.1088/1757-899X/563/3/032035

来源: IOP

【 摘 要 】

To analyze the mechanical properties of jet penetration on a single-cell/multi-cell liquid composite closed structure, the motion equation of jet penetrating a metal target is established, and the energy equation of the penetration system is derived. The simulation results show the radial convergence effect of the liquid in the single-cell increases with the increase of the height of the inner cavity of the closed structure. The radial convergence effect of liquid in multi-cell also has the same phenomenon, but the phenomenon of liquid disjunction appears, which leads to the convergence of liquid into segments. The pressure in the single-cell liquid appears at the bottom of the cell, but the multi-cell liquid appears in the last cell. The pressure distribution of the single-cell is concentrated on the bottom of the cell, and the pressure distribution is circular. The pressure distribution of multi-cell is more uniform, and there is no obvious concentrated distribution phenomenon. The energy of the closed cell structure increases with the increase of the height and the number of the cell.