Effect of Confinement on Detonation Velocity and Plate Dent Test Results for ANFO Explosive

The detonation properties of nonideal explosives are highly dependent on charge diameter and existence and properties of confinement. In this study, the effect of different confinements on the detonation velocity of ANFO explosives was experimentally determined along with the results of the plate de...

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Bibliographic Details
Published in:Energies (Basel) 2022-06, Vol.15 (12), p.4404
Main Authors: Bohanek, Vječislav, Sućeska, Muhamed, Dobrilović, Mario, Hartlieb, Philipp
Format: Article
Language:English
Subjects:
Aluminum
ANFO
Confinement
Detonation
detonation velocity
Explosives
Metals
plate dent test
Velocity
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Summary:The detonation properties of nonideal explosives are highly dependent on charge diameter and existence and properties of confinement. In this study, the effect of different confinements on the detonation velocity of ANFO explosives was experimentally determined along with the results of the plate dent test. ANFO explosive was selected as one of the most commonly used nonideal explosives. Following the measurement results, we found that the detonation velocity increased with increasing wall thickness, and the velocity increase was different for different confinement materials. A strong correlation existed between the ratio of the mass of confiner and explosive (M/C) and the detonation velocity (R = 0.995), and between (M/C) and the depth of the dent (δ) (R = 0.975). The data presented in this paper represent preliminary findings in developing a confinement model required for reliable numerical modeling of nonideal explosives.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15124404