Experimental determination of detonation parameters of explosives based on ammonium nitrate

Abstract

Articles you may be interested inSimulation of the detonation process of an ammonium nitrate based emulsion explosive using the lee-tarver reactive flow model AIP Conf.Abstract. Laser interferometer VISAR was used for investigation of the reaction zone structure and determination of detonation parameters in two different kinds of explosives based on ammonium nitrate: emulsion explosives and composite explosives with plastic binder. The influence of ammonium particles size, structure and charge diameter on detonation velocity and distribution of parameters inside of the reaction zone has been investigated for composite explosives. The effect of aging time of emulsion matrix with different storage time was found.

Shock compression of an emulsion matrix at pressures up to 37 GPa

“…A fresh emulsion prepared less than a day before the test was used. The obtained profile of u out (t) was typical of the liquid without chemical reactions, i.e., a significant increase in the particle velocity, similar to the recorded factor of 1.5 increase in the velocity for the AN emulsion [7], was not observed.…”

“…2 marks the region p 14 GPa previously studied by other authors. Comparison of the results with the data for emulsions based on a water solution of AN or AN/sodium perchlorate (SP) [6,7] shows that variations in the composition and dispersion of the emulsion has little effect on the position of the Hugoniot in these coordinates. The Hugoniot in the pressureparticle velocity coordinates is well described by the parabola p = 3.43u+2.30u 2 .…”

“…There are estimates [3][4][5] and experimental data [6,7] on the shock compression of emulsion matrices of various compositions. These results were obtained at a dynamic pressure of 14 GPa, close to the calculated values of p CJ for emulsions.…”

“…Hugoniots of the AN/SN emulsion matrix: points represent experimental data for AN/SN emulsion (1) and the emulsion explosive (6) (authors' data; see the table) and AN and AC/SP emulsions[6,7] (2-4); 5 are the Chapman-Jouguet points[1]; curves 7 show the calculated data; Michelson line 8 inFig. 2bcorresponds to the calculated detonation velocity of 6.42 km/s[1].…”