Effect of Pore in Composition-B Explosive on Sensitivity under Impact of Drop Weight

  • Qi Zhang Beijing Institute of Technology, Beijing
  • Shaoqiao Hu Beijing Institute of Technology, Beijing
  • Huimin Liang Beijing Institute of Technology, Beijing
DOI: https://doi.org/10.14429/dsj.63.2321
Keywords: Safety performance of explosive, impact sensitivity, drop weight, launch process, numerical simulation

Abstract

Experiment impacting explosive sample with a drop weight is a standard approach in China. Pores in explosive have a significant effect on its sensitivity under impact of a drop weight. In the experiments impacting explosive samples with a drop weight, it is difficult to observe the dynamic responding and igniting process around a poreby using a measurement approach. This work developed an approach to predict the effect of pore in explosive onsensitivity under impact with drop weight. The effect of pore in composition-B explosive on the sensitivity under impact with a drop weight was investigated by using numeral simulation in this work. Through a series of numerica lcalculation, it was found that when the sizes of pore in composition-B explosive are less than 0.3 mm, its effect on sensitivity under impact of a drop weight can be ignored. This result agrees with the experimental data.

Defence Science Journal, 2013, 63(1), pp.108-113, DOI:http://dx.doi.org/10.14429/dsj.63.2321

Author Biographies

Qi Zhang, Beijing Institute of Technology, Beijing
Dr Qi Zhang received his PhD from China University of Mining and Technology, Beijing, presently working as a Professor at State Key Laboratory of Explosion Science and Technology. His research interests areas include: Explosion mechanics andits applications.
Shaoqiao Hu, Beijing Institute of Technology, Beijing
Mr Shaoqiao Hu received his ME from Beijing Institute of Technology in 2011. He is a engineer at the No.208 institute in Beijing. His research interest includes : Engineering mechanics and explosion blast.
Huimin Liang, Beijing Institute of Technology, Beijing
Dr Huimin Liang received her PhD from Beijing Institute of Technology in 2006. She is a lecturer at Beijing Institute of Technology. Her research interest includes : Explosive andits applications.
Published
2013-01-01
How to Cite
Zhang, Q., Hu, S., & Liang, H. (2013). Effect of Pore in Composition-B Explosive on Sensitivity under Impact of Drop Weight. Defence Science Journal, 63(1), 108-113. https://doi.org/10.14429/dsj.63.2321
Issue
Vol 63 No 1: Communication Systems and Image Processing Technology
Section
Armaments & Explosives
Copyright (c) 2016 Defence Science Journal

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