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

Vječislav Bohanek, Muhamed Sućeska, Mario Dobrilović and Philipp Hartlieb
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Vječislav Bohanek: Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, 10000 Zagreb, Croatia
Muhamed Sućeska: Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, 10000 Zagreb, Croatia
Mario Dobrilović: Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, 10000 Zagreb, Croatia
Philipp Hartlieb: Mining Engineering and Mineral Economics, Montanuniversitaet Leoben, 8700 Leoben, Austria

Energies, 2022, vol. 15, issue 12, 1-9

Abstract: 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.

Keywords: ANFO; confinement; detonation velocity; plate dent test (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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