Two-dimensional explosion experiments examining the interaction between a blast wave and a sand hill

Y. Sugiyama, M. Izumo, H. Ando, Akiko Matsuo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Two-dimensional explosion experiments were conducted to discuss the interaction between a blast wave and sand and show the mitigation effect of the sand on the blast wave. The explosive used was a detonating cord 1.0 m in length, which was initiated in a sand hill shaped like a triangular prism and whose cross section was an isosceles triangle with base angles of 30. Sand-hill heights of 30 and 60 mm were used as parameters to discuss the effect of sand mass upon blast-wave strength. The interaction of the blast wave with the sand/air interface causes multiple peaks in the blast wave, which are induced by successive transmissions at the interface. The increase in the sand mass further mitigates the blast parameters of peak overpressure and positive impulse. The results of this experiment can be utilized to validate the numerical method of solving the problem of interaction between a compressible fluid and a particle layer.

Original languageEnglish
Pages (from-to)627-630
Number of pages4
JournalShock Waves
Volume28
Issue number3
DOIs
Publication statusPublished - 2018 May 1

Keywords

  • Blast wave
  • Explosion
  • Mitigation
  • Sand hill
  • Two-dimensional experiments

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)

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