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Determination of bulk properties and fracture data for iron ore pellets using instrumented confined compression experiments
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0002-3907-0802
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0002-7514-0513
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0003-0910-7990
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Maskinelement.ORCID-id: 0000-0003-3157-4632
2013 (engelsk)Inngår i: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 241, s. 19-27Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this work, an experimental method for measuring the bulk properties and fracture loading relations for iron ore pellets is presented. Knowledge on the bulk behaviour and fracture data for iron ore pellets is of great importance for improving the material transportation systems and to increase the product quality. Trustworthy numerical simulations of iron ore pellets also demand reliable materials data for the models. Here, instrumented confined compression tests are carried out at different load levels. Measurement data of the axial and radial stresses and the axial displacement are recorded for each test. Measurements of fractured iron ore pellets are carried out at different loads giving rise to crushing up to 20% of the total material. From the measured data, the Poisson´s ratio, the bulk modulus and a plastic strain hardening function are determined. In addition, friction measurements of iron ore pellets are carried out at different loads and configurations. In conclusion, the test method developed here is usable for the determination of the bulk properties and fracture characteristics of iron ore pellets.

sted, utgiver, år, opplag, sider
2013. Vol. 241, s. 19-27
HSV kategori
Forskningsprogram
Hållfasthetslära; Maskinelement
Identifikatorer
URN: urn:nbn:se:ltu:diva-8026DOI: 10.1016/j.powtec.2013.02.030ISI: 000319370500004Scopus ID: 2-s2.0-84875611976Lokal ID: 677472fe-5dd0-49a5-9d93-1a4811f6c7cfOAI: oai:DiVA.org:ltu-8026DiVA, id: diva2:980916
Merknad
Validerad; 2013; 20130226 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Gustafsson, GustafHäggblad, Hans-ÅkeJonsén, PärMarklund, Pär

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