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Parameter Determination of an Ignition and Growth Model from Emulsion Explosive Tests
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-5872-5173
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-5165-4229
2015 (engelsk)Inngår i: 11th International Symposium on Rock Fragmentation by Blasting: FragBlast11, Carlton VIC: The Australasian Institute of Mining and Metallurgy, 2015, s. 585-589Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Emulsion explosives are a common industrial explosive and have a non-ideal detonation behaviour. The detonation performance for a given product changes with the charge diameter, ground conditions, confinement and density. The burning process of an emulsion explosive has been modelled with an ignition and growth model in the LS-DYNA code. The parameters in the burning rate function are calibrated by the detonation velocities and the detonation front curvature radii from emulsion explosive tests. A Perl program was developed for an efficient estimation of the parameters, and the results show that the calibrated parameters can predict both detonation velocities and the detonation front curvatures.

sted, utgiver, år, opplag, sider
Carlton VIC: The Australasian Institute of Mining and Metallurgy, 2015. s. 585-589
HSV kategori
Forskningsprogram
Gruv- och Berganläggningsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-39883Lokal ID: ecdaf374-4af2-479c-a17d-18214db5c84eISBN: 9781925100327 (tryckt)OAI: oai:DiVA.org:ltu-39883DiVA, id: diva2:1013402
Konferanse
International Symposium on Rock Fragmentation by Blasting : 24/08/2015 - 25/08/2015
Merknad
Godkänd; 2015; 20150901 (chayir)Tilgjengelig fra: 2016-10-03 Laget: 2016-10-03 Sist oppdatert: 2018-04-17bibliografisk kontrollert

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Yi, ChangpingNyberg, UlfJohansson, Daniel

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