A generalized dependence of the critical detonation diameter of porous substances on the density View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1997-03

AUTHORS

B. N. Kondrikov, V. É. Annikov, G. D. Kozak

ABSTRACT

A generalized dependence of the detonation diameter of closed-porosity explosives on the relative density is obtained in the form of anU-shaped curve. The right branch of the curve can be described within the framework of the theory of V. S. Trofimov. The linear rate of chemical conversion of a substance at an interface is approximately proportional to the pressure. It is shown that despite its purely approximate character, the qualitative theory of Yu. B. Khariton yields the same values of the average reaction rates as the theory of V. S. Trofimov if the coefficient in Khariton’s formula is assumed to be equal to 5. It is noted that in almost all cases the gasification rate of explosives in a detonation wave is greater by a factor of 2–3 than the usual burning rates, which were obtained by extrapolation of the quantities measured in a constant-pressure shell. We propose a mechanism of forced gasification of explosives by a shock-heated gas which fills the pores. The left part of the curve is described under the assumption that the specific combustion surface of low-density explosives is limited by the shock-compression energy supplied to form a heated layer necessary to ignite a detonating substance. More... »

PAGES

219-229

References to SciGraph publications

  • 1973-01. Kinetics of the combustion of nitro compounds at high pressures in COMBUSTION, EXPLOSION, AND SHOCK WAVES
  • 1987-01. Equation of state for gases at high pressure in COMBUSTION, EXPLOSION, AND SHOCK WAVES
  • 1996-01. The effect of viscosity on the detonation stability of diethylene glycol dinitrate in COMBUSTION, EXPLOSION, AND SHOCK WAVES
  • 1977-07. Possible gasdynamic limit of propagation of a stationary detonation in COMBUSTION, EXPLOSION, AND SHOCK WAVES
  • 1983-07. Detonation mechanism for gas-filled watery gels in COMBUSTION, EXPLOSION, AND SHOCK WAVES
  • 1987-03. Detonation transformations in an aerated liquid in COMBUSTION, EXPLOSION, AND SHOCK WAVES
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1007/bf02671919

    DOI

    http://dx.doi.org/10.1007/bf02671919

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1011896719


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