Comptes Rendus
Experimental study of the detonation of technical grade ammonium nitrate
Comptes Rendus. Mécanique, Volume 337 (2009) no. 11-12, pp. 755-760.

The detonation of technical grade ammonium nitrate at the density ρ=0.666 g/cm3 confined in PVC and steel tubes was experimentally studied. The results show that the detonation is self-sustained and steady in steel tubes with diameter as small as 12 mm. Critical detonation diameter lies between 8 and 12 mm in 2 mm thick steel tubes and between 55 and 81 mm in PVC tubes. These values testify a strong detonation sensitivity of this product.

La détonation du nitrate d'ammonium industriel à la densité ρ=0,666 g/cm3 confiné dans des tubes en acier et en PVC a été étudiée expérimentalement. Les résultats montrent que sa détonation est autonome et stationnaire en tube acier pour des confinements aussi petits que 12 mm en diamètre. Son diamètre critique de détonation est compris entre 8 et 12 mm en tube acier de 2 mm d'épaisseur de paroi et entre 55 et 81 mm en tube PVC, valeurs qui témoignent d'une forte sensibilité à la détonation de ce produit.

Received:
Accepted:
Published online:
DOI: 10.1016/j.crme.2009.10.007
Keywords: Combustion, Ammonium nitrate, Detonation, Detonation velocity, Critical detonation diameter, Detonation sensitivity
Mot clés : Combustion, Nitrate d'ammonium, Détonation, Vélocité de détonation, Diamètre critique de détonation, Sensibilité à la détonation

Henri-Noël Presles 1; Pierre Vidal 1; Boris Khasainov 1

1 Laboratoire de combustion et de détonique, UPR CNRS 9028, ENSMA, BP 40120, 86210 Futuroscope–Chasseneuil, France
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Henri-Noël Presles; Pierre Vidal; Boris Khasainov. Experimental study of the detonation of technical grade ammonium nitrate. Comptes Rendus. Mécanique, Volume 337 (2009) no. 11-12, pp. 755-760. doi : 10.1016/j.crme.2009.10.007. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2009.10.007/

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[3] A. Miyake, A.C. van der Steen, H.H. Kodde, Detonation velocity and pressure of the non-ideal explosive ammonium nitrate, in: Ninth International Symposium on Detonation, 1989, pp. 560–565

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