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Experimental characterization of constitutive data of iron ore pellets
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-3907-0802
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-7514-0513
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-1365-8552
2009 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 194, no 1-2, p. 67-74Article in journal (Refereed) Published
Abstract [en]

For trustworthy numerical simulations of iron ore pellets flow, knowledge about the mechanical properties of pellets is needed. In this work, an elastic-plastic continuum material model for blast furnace iron ore pellets is worked out from an experimental data. The equipment used is a Norwegian simple shear apparatus, designed for compression and shear test of granular material with a grain size less than 100 mm. It consists of a cylindrical cell filled with pellets surrounded by a rubber membrane and a rigid top and bottom. Two types of tests are performed. One test is pure compression and unloading and the second is shearing at different stress levels. Evaluation of these tests is performed and the elastic-plastic behaviour of iron ore pellets is characterized. Determined constitutive data are two elastic parameters and a yield function. The presented material model captures the major characteristics of the pellets even though it is too simple to completely capture the complex behaviour shown in the experiments.

Place, publisher, year, edition, pages
2009. Vol. 194, no 1-2, p. 67-74
National Category
Applied Mechanics Geotechnical Engineering
Research subject
Solid Mechanics; Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-12668DOI: 10.1016/j.powtec.2009.03.026ISI: 000267634400008Scopus ID: 2-s2.0-67349124401Local ID: bd5b1800-300f-11de-bd0f-000ea68e967bOAI: oai:DiVA.org:ltu-12668DiVA, id: diva2:985619
Note
Validerad; 2009; 20090423 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Gustafsson, GustafHäggblad, Hans-ÅkeKnutsson, Sven

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