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Science and Technology of Energetic Materials

Vol.72, No.1 (2011)

Research paper

Influence of charge diameter on detonation velocity and reaction zone of ANFO explosive contained in a steel tube
Naoki Kinoshita, Shiro Kubota, Tei Saburi, Yuji Ogata, and Atsumi Miyake
p.21-25

Abstract

To obtain a better understanding of the detonation properties of non-ideal explosives containing ammonium nitrate as the main ingredient, numerical simulations of the detonation of ammonium nitrate and fuel oil mixture (ANFO) are implemented using an Eulerian hydrocode, and compared with the experimental results of an ANFO steel tube test. The simulation results of the detonation velocity at various charge diameters accord with experimental ones. The simulations also showed that the shock front in the detonation wave in ANFO is slightly curved. The profiles for the mass fraction of detonation products differ according to the position in the charge and the dimension of the charge diameter.

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Keywords

ANFO, non-ideal detonation, numerical simulation, Eulerian hydrocode, diameter effect

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