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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015011368
pages 125-145

ON THE EXPLICIT DETERMINATION OF THE CHAPMAN−JOUGUET PARAMETERS FOR AN EXPLOSIVE COMPOUND

Dennis Nandlall
Defence Research and Development Canada, 2459, route de la Bravoure, Quebec G3J1X5

RÉSUMÉ

This work re-examines earlier development and current advances of the shock Hugoniots in anticipation of developing an explicit solution to determine the Chapman−Jouguet (C-J) parameters for an explosive compound. A new and simple equation for the C-J specific density was obtained as a function of three measureable parameters: initial density, detonation velocity, and the heat of detonation. For the ratio of specific heats, γ, an explicit expression as a function of the C-J parameters was obtained. The relations were tested for the very well-characterized explosives PETN, HMX, RDX, TATB, TNT, and the calculated values obtained for the C-J parameters and γ compared very well with published experimental values. The equations were then applied to a broad range of explosives types regardless of their heterogeneity or their physical state and the C-J parameters obtained compared very well with published values.


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