On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope

Detalhes bibliográficos
Autor(a) principal: Khan,Muhammad Sabeel
Data de Publicação: 2019
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Latin American journal of solids and structures (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000400505
Resumo: Abstract In this paper a most promising scope of the exact quasiconvex energy envelope in modeling the granular materials with microstructures is presented. This study shows that it is possible to observe both the extended microstructures and localized deformations in granular materials using a variational model based on the mathematical relaxation theory. The variational model is derived within the framework of Cosserat continuum. The computational algorithm based on finite element method is used to carry out numerical computations. The features of the proposed model are studied for three representative examples: the Couette shear cell, the rectangular specimen in compression and the indentation of a granular structure. The obtained results demonstrate on the possible applications and features of exact quasiconvex energy envelops in modeling the granular materials.
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spelling On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelopeGranular materialsenergy methodsextended microstructureslocalized deformationsshear bandsrelaxed Cosserat energyand Finite element methodAbstract In this paper a most promising scope of the exact quasiconvex energy envelope in modeling the granular materials with microstructures is presented. This study shows that it is possible to observe both the extended microstructures and localized deformations in granular materials using a variational model based on the mathematical relaxation theory. The variational model is derived within the framework of Cosserat continuum. The computational algorithm based on finite element method is used to carry out numerical computations. The features of the proposed model are studied for three representative examples: the Couette shear cell, the rectangular specimen in compression and the indentation of a granular structure. The obtained results demonstrate on the possible applications and features of exact quasiconvex energy envelops in modeling the granular materials.Associação Brasileira de Ciências Mecânicas2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000400505Latin American Journal of Solids and Structures v.16 n.4 2019reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78255419info:eu-repo/semantics/openAccessKhan,Muhammad Sabeeleng2019-04-22T00:00:00Zoai:scielo:S1679-78252019000400505Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2019-04-22T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
title On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
spellingShingle On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
Khan,Muhammad Sabeel
Granular materials
energy methods
extended microstructures
localized deformations
shear bands
relaxed Cosserat energy
and Finite element method
title_short On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
title_full On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
title_fullStr On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
title_full_unstemmed On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
title_sort On the observation of extended microstructures and localized deformations in granular materials - A feature of excat quasi-convex energy envelope
author Khan,Muhammad Sabeel
author_facet Khan,Muhammad Sabeel
author_role author
dc.contributor.author.fl_str_mv Khan,Muhammad Sabeel
dc.subject.por.fl_str_mv Granular materials
energy methods
extended microstructures
localized deformations
shear bands
relaxed Cosserat energy
and Finite element method
topic Granular materials
energy methods
extended microstructures
localized deformations
shear bands
relaxed Cosserat energy
and Finite element method
description Abstract In this paper a most promising scope of the exact quasiconvex energy envelope in modeling the granular materials with microstructures is presented. This study shows that it is possible to observe both the extended microstructures and localized deformations in granular materials using a variational model based on the mathematical relaxation theory. The variational model is derived within the framework of Cosserat continuum. The computational algorithm based on finite element method is used to carry out numerical computations. The features of the proposed model are studied for three representative examples: the Couette shear cell, the rectangular specimen in compression and the indentation of a granular structure. The obtained results demonstrate on the possible applications and features of exact quasiconvex energy envelops in modeling the granular materials.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000400505
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000400505
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78255419
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
dc.source.none.fl_str_mv Latin American Journal of Solids and Structures v.16 n.4 2019
reponame:Latin American journal of solids and structures (Online)
instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
instname_str Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron_str ABCM
institution ABCM
reponame_str Latin American journal of solids and structures (Online)
collection Latin American journal of solids and structures (Online)
repository.name.fl_str_mv Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv abcm@abcm.org.br||maralves@usp.br
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