Comparative evaluation of constitutive models for stress-strain analysis of an iron ore tailings from the Quadrilátero Ferrífero, Minas Gerais, Brazil.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorFaria, André de Oliveira-
Autor(es): dc.creatorDelgado, Bruno Guimarães-
Autor(es): dc.creatorFerreira, Lucas Deleon-
Autor(es): dc.creatorSantos Junior, Mauro Pio dos-
Data de aceite: dc.date.accessioned2025-08-21T15:54:11Z-
Data de disponibilização: dc.date.available2025-08-21T15:54:11Z-
Data de envio: dc.date.issued2024-12-02-
Data de envio: dc.date.issued2024-12-02-
Data de envio: dc.date.issued2022-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/19250-
Fonte completa do material: dc.identifierhttps://doi.org/10.28927/SR.2024.011022-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1027017-
Descrição: dc.descriptionThe study and understanding of the concepts related to critical state soil mechanics is relatively recent in Brazil, especially among practicing geotechnical engineers in the mining industry, where simpler solutions were traditionally adopted. This raises the necessity to develop studies capable of promoting discussions about the benefits of the approaches from the critical state theory. In this context, this research aims to evaluate the behavior of an iron ore tailings from the Quadrilátero Ferrífero through critical state computational models, considering the Modified Cam-Clay and NorSand model. The numerical results from the use of the models simulated the ductile/brittle behavior of the material in drained shear and it was observed that for loose samples both models produced similar results. The simulations in undrained shear, on the other hand, highlighted the differences between the models, with the NorSand showing a strength loss in undrained shear (strain-softening) whereas the Modified Cam-Clay Model exhibited a ductile behavior. In general, the NorSand model was the one that presented the best numerical response in relation to the experimental behavior, which may be linked to the use of the largest number of parameters, to the concept that particulate materials exist in a set of states and the silty characteristic of the material. Additionally, it was observed the difficulty to simulate the dense behavior of materials with the model, which may be associated with the formation of ‘shear bands’ during the experimental test and the complexity of modeling the occurrence of this phenomenon in virtual tests using the NorSand model.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Fonte: PDF do artigo.-
Palavras-chave: dc.subjectCritical state soil mechanics-
Palavras-chave: dc.subjectModified cam-clay-
Palavras-chave: dc.subjectNorSand-
Título: dc.titleComparative evaluation of constitutive models for stress-strain analysis of an iron ore tailings from the Quadrilátero Ferrífero, Minas Gerais, Brazil.-
Aparece nas coleções:Repositório Institucional - UFOP

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