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Shock and Vibration
Volume 2017 (2017), Article ID 6150193, 10 pages
https://doi.org/10.1155/2017/6150193
Research Article

Experimental and Numerical Research on Cylindrical Tubes under Outer Cylindrical Explosive Waves

1State Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, China
2Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi’an 710024, China

Correspondence should be addressed to Sui Yaguang

Received 5 January 2017; Revised 29 March 2017; Accepted 9 April 2017; Published 4 June 2017

Academic Editor: Evgeny Petrov

Copyright © 2017 Sui Yaguang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Cylindrical explosive loading has an important application in explosive working, researching on weapon damage, and explosive-driving load. This study uses experimental and numerical methods to study the response of long and thin tubes when subjected to cylindrical explosive loading. The flake-like charge and multipoint initiation technique were adopted to load cylindrical explosive waves. Experimental results showed that the method could produce uniform deformation in certain parts of the long tube, but partial spall injuries occurred after the explosion. The macroscopic and microscopic deformation of tubes were analyzed. Numerical simulations were conducted to investigate the detailed response of the tube subjected to a cylindrical explosive wave. The results indicate that the collision of explosive waves brought inconsistencies in pressure and velocity. The pressure and velocity in the collision region were significantly higher than those of other parts, which caused the collision region to be easily damaged.