Open AccessTheoretical Analysis of Residual Head Velocity after the Jet Penetrating the Multi-layer Metal-Liquid Composite Structure
Author(s) -
Changfang Zhao,
Jie Ren,
Tengfei Kuai,
Zhitan Zhou,
Kebin Zhang,
Xudong Zu,
Guigao Le
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/711/1/012061
Subject(s) - residual , penetration (warfare) , composite number , head (geology) , materials science , mechanics , penetration depth , jet (fluid) , composite material , shock wave , optics , physics , geology , engineering , mathematics , algorithm , operations research , geomorphology
The residual head velocity after the jet penetrating a target plate is an indication of the residual penetration capability of the jet, which changes obviously with the penetration time. In this study, the residual head velocity after the jet penetrating through the n -layer metal and the n -layer liquid was deduced by using the quasi-steady penetration model theory. The influence of shock wave to the residual head velocity of jet was analyzed. The calculation results show that the residual head velocity of the jet decreases with the increase of the number of layers of the composite structure, and the shock wave obviously affects the velocity of the residual head of the jet but not very strong. According to the difference between the experimental value and the theoretical value of the jet penetrating the single-layer composite structure, a method of modifying the theoretical mathematical model by using constant C as the calibration value is proposed. The mathematical model can be extended to calculate the residual head velocity of the jet penetrating the multi-layer metal-liquid composite structure with different materials and thickness.