Analysis of the Iron Ore Pellet Mechanical Behavior under Biaxial Compression
| Autor: | Maria Carolina dos Santos Freitas, Gláucio Soares da Fonseca, Flavia de Paula Vitoretti, Jorge Franklin Mansur Rodrigues Filho, José Adilson de Castro |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Mechanical Engineering Metallurgy Stress–strain curve Pellets Biaxial tensile test 02 engineering and technology Condensed Matter Physics Pelletizing Compression (physics) 020501 mining & metallurgy Compressive strength Brittleness 0205 materials engineering Mechanics of Materials General Materials Science Composite material Deformation (engineering) |
| Zdroj: | Materials Science Forum. 899:448-451 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.899.448 |
| Popis: | The increasing global demand for iron ore pellets has made the pelletizing companies to step up their investments. The mechanical strength of the pellets, as well as its wear resistance are important factors to characterize the mechanical behavior. These properties are influenced by the type and nature of the ore or concentrate, the additives and the subsequent heat treatment used. This paper develops a numerical finite element model in order to characterize the mechanical behavior of iron ore pellets. The biaxial compressive stress was analyzed in this study. The results show that the pellet subjected to biaxial stress supports higher levels of stress and strain when compared to uniaxial efforts. Accuracy increase of the simulation results can be obtained with the implementation of a failure criterion for brittle materials in the numerical model. Finally, could be seen that the pellet had higher levels of deformation under biaxial symmetric strain, when compared with the uniaxial compression results. |
| Databáze: | OpenAIRE |
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