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The Influence of Flyer Momentum on an Aluminium Plate’s Response to Underwater Shock Loading

Published online by Cambridge University Press:  30 January 2018

X. He ,
J. L. Rong ,
D. L. Xiang ,
H. Y. Wei ,
C. H. Hu  and
X. Wang
X. He
Affiliation:
School of Aerospace Engineering Beijing Institute of TechnologyBeijing, China Beijing Institute of Space Launch TechnologyBeijing, China
J. L. Rong*
Affiliation:
School of Aerospace Engineering Beijing Institute of TechnologyBeijing, China
D. L. Xiang
Affiliation:
School of Aerospace Engineering Beijing Institute of TechnologyBeijing, China
H. Y. Wei
Affiliation:
School of Aerospace Engineering Beijing Institute of TechnologyBeijing, China
C. H. Hu
Affiliation:
School of Aerospace Engineering Beijing Institute of TechnologyBeijing, China
X. Wang
Affiliation:
Beijing Institute of Space Launch Technology Beijing, China
*
*Corresponding author (rongjili@bit.edu.cn)
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Abstract

An underwater shock loading experimental device is used to simulate underwater explosion shock waves. The aim of this study is to investigate the influence of flyer momentum on the response of an aluminium plate to this underwater shock loading experimental device. The simulation accuracy can be verified by comparing theoretical data with the simulation and experimental results. Through simulations, an aluminium plate’s deformation and pressure specific impulse can be determined when flyers impact the piston at different velocities but at the same momentum. The aluminium plate's deformation and pressure specific impulse are constant when the flyers had constant momentum because both are directly proportional to the flyer momentum. The results have an important practical value for understanding and using this type of experimental device.

Keywords

Underwater shock loadingUnderwater shock waveMomentumSpecific impulse
Type
Research Article
Information
Journal of Mechanics , Volume 35 , Issue 2 , April 2019 , pp. 267 - 278
Copyright
© The Society of Theoretical and Applied Mechanics 2017 

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