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Shock tube measurement of explosive sensitivity

Publication ,  Journal Article
Friedman, MH
Published in: Combustion and Flame
1966

A shock tube test is described, in which fine dusts or sprays of explosive materials are ignited behind the reflected shock, and the dependence of the measured ignition delay on reflected shock temperature is determined. The test simulates the impact initiation of liquids and solids by bubble hot spots in a clean, controlled and well-defined fashion, From only a few tests, one can obtain (1) a valid measure of the sensitivity of the explosive, using only milligramme quantities of material, and (2) information about the physical and, in some cases, the chemical, mechanism of the initiation of the substance upon impact. The hot gaseous environment of the sample is well defined through normal shock relations and the nature of the channel gas may be varied to study environmental effects. Test data on a number of explosives are presented and are interpreted in terms of initiation mechanism. The experimental results suggest that hot spot temperatures required to initiate sensitive materials are between 500° and 800°C, and that bubble compression to form hot spots is decidedly non-adiabatic.

Duke Scholars

Published In

Combustion and Flame

DOI

Publication Date

1966

Volume

10

Issue

2

Start / End Page

112 / 119

Related Subject Headings

  • Energy
  • 4012 Fluid mechanics and thermal engineering
  • 4004 Chemical engineering
  • 4002 Automotive engineering
  • 0913 Mechanical Engineering
  • 0904 Chemical Engineering
  • 0902 Automotive Engineering
 

Citation

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ICMJE
MLA
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Friedman, M. H. (1966). Shock tube measurement of explosive sensitivity. Combustion and Flame, 10(2), 112–119. https://doi.org/10.1016/0010-2180(66)90056-3
Friedman, M. H. “Shock tube measurement of explosive sensitivity.” Combustion and Flame 10, no. 2 (1966): 112–19. https://doi.org/10.1016/0010-2180(66)90056-3.
Friedman MH. Shock tube measurement of explosive sensitivity. Combustion and Flame. 1966;10(2):112–9.
Friedman, M. H. “Shock tube measurement of explosive sensitivity.” Combustion and Flame, vol. 10, no. 2, 1966, pp. 112–19. Manual, doi:10.1016/0010-2180(66)90056-3.
Friedman MH. Shock tube measurement of explosive sensitivity. Combustion and Flame. 1966;10(2):112–119.

Published In

Combustion and Flame

DOI

Publication Date

1966

Volume

10

Issue

2

Start / End Page

112 / 119

Related Subject Headings

  • Energy
  • 4012 Fluid mechanics and thermal engineering
  • 4004 Chemical engineering
  • 4002 Automotive engineering
  • 0913 Mechanical Engineering
  • 0904 Chemical Engineering
  • 0902 Automotive Engineering