Optical measurements of flyer plate acceleration by emulsion explosive

Shiro Kubota, Hideki Shimada, Kikuo Matsui, Yuji Ogata, Masahiro Seto, Akira Masui, Yuji Wada, Zhi yue Liu, Shigeru Itoh

Research output: Contribution to journalArticlepeer-review


This paper presents the study on the application of explosive welding technique to the field of the urgent repair of the gas and water pipe networks. The essential parameters related to the explosive welding are scrutinized from the point of view of the minimizing the damage to the steel pipe after welded explosively with a flyer plate. The emulsion explosive is contained in a rectangular hard-paper box whose bottom is the flyer plate with 100 mm length, 25 mm width and 1.5 mm thickness. The flyer motions of the flyer plates accelerated by emulsion explosive are observed by high-speed photography from the side and front view of the flyer plate. The damage to the pipe by the flyer plate is discussed with the results of the observation of flyer motion and explosive welding test under various experimental conditions. Moreover, one way to control the motion of the flyer plate is proposed. We put a PMMA buffer block into the explosive. The flying process of flyer plate is calculated by the finite different sc heme based on the ALE method. The effectiveness of this method is demonstrated by the experimental and numerical studies.

Original languageEnglish
Pages (from-to)771-778
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number1
Publication statusPublished - Apr 17 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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