A concurrent multiscale approach for modeling recycled aggregate concrete

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Eduardo A. [UNESP]
Data de Publicação: 2021
Outros Autores: Gimenes, Marcela [UNESP], Bitencourt, Luís A.G., Manzoli, Osvaldo L. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.conbuildmat.2020.121040
http://hdl.handle.net/11449/205437
Resumo: The use of recycled concrete aggregates in new concrete is an alternative that can provide economical and environmental benefits. However, the influence of the inert particles on the mechanical behavior of concrete needs to be better understood. To provide a comprehensive simulator to predict the failure mechanism of this material taking into account its heterogeneity in mesoscale, a mesh fragmentation technique composed of interface solid finite elements equipped with a tensile damage model is employed. To minimize computational costs, a concurrent multiscale strategy based on the use of coupling finite elements to connect the macro and mesoscale regions is adopted. In mesoscale, the different phases of the recycled aggregate concrete (RAC) are explicitly represented, consisting of: (i) new mortar matrix; (ii) recycled aggregate composed of old matrix and crushed rock (natural aggregate); and (iii) interfacial transition zones in between all of them. For the regions where cracks are not expected, homogenized elastic parameters are assumed for the RAC. Three-point bending beams experimentally tested by Casuccio et al. [4] are numerically analyzed for concrete with compressive strength targets of 18, 37 and 48 MPa. These concrete beams were produced with coarse aggregates derived from natural crushed stone and another two coming from recycled concrete with high and normal strengths. The numerical results obtained show that the concurrent multiscale model is able to represent the tensile failure mechanism of the RAC, taking into account explicitly the effects of the recycled components on crack patterns and structural predictions.
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spelling A concurrent multiscale approach for modeling recycled aggregate concreteCoupling Finite ElementsHAR elementsInterfacial Transition ZoneMultiscale modelRecycled Aggregate ConcreteThe use of recycled concrete aggregates in new concrete is an alternative that can provide economical and environmental benefits. However, the influence of the inert particles on the mechanical behavior of concrete needs to be better understood. To provide a comprehensive simulator to predict the failure mechanism of this material taking into account its heterogeneity in mesoscale, a mesh fragmentation technique composed of interface solid finite elements equipped with a tensile damage model is employed. To minimize computational costs, a concurrent multiscale strategy based on the use of coupling finite elements to connect the macro and mesoscale regions is adopted. In mesoscale, the different phases of the recycled aggregate concrete (RAC) are explicitly represented, consisting of: (i) new mortar matrix; (ii) recycled aggregate composed of old matrix and crushed rock (natural aggregate); and (iii) interfacial transition zones in between all of them. For the regions where cracks are not expected, homogenized elastic parameters are assumed for the RAC. Three-point bending beams experimentally tested by Casuccio et al. [4] are numerically analyzed for concrete with compressive strength targets of 18, 37 and 48 MPa. These concrete beams were produced with coarse aggregates derived from natural crushed stone and another two coming from recycled concrete with high and normal strengths. The numerical results obtained show that the concurrent multiscale model is able to represent the tensile failure mechanism of the RAC, taking into account explicitly the effects of the recycled components on crack patterns and structural predictions.São Paulo State University – UNESP, Av. Eng. Luiz Edmundo C. Coube 14-01University of São Paulo – USP Department of Structural and Geotechnical Engineering, Av. Prof. Luciano Gualberto, Trav. do Biênio n. 380São Paulo State University – UNESP, Av. Eng. Luiz Edmundo C. Coube 14-01Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Rodrigues, Eduardo A. [UNESP]Gimenes, Marcela [UNESP]Bitencourt, Luís A.G.Manzoli, Osvaldo L. [UNESP]2021-06-25T10:15:20Z2021-06-25T10:15:20Z2021-01-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.conbuildmat.2020.121040Construction and Building Materials, v. 267.0950-0618http://hdl.handle.net/11449/20543710.1016/j.conbuildmat.2020.1210402-s2.0-85095566827Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengConstruction and Building Materialsinfo:eu-repo/semantics/openAccess2021-10-23T14:27:05Zoai:repositorio.unesp.br:11449/205437Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:32:15.118765Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv A concurrent multiscale approach for modeling recycled aggregate concrete
title A concurrent multiscale approach for modeling recycled aggregate concrete
spellingShingle A concurrent multiscale approach for modeling recycled aggregate concrete
Rodrigues, Eduardo A. [UNESP]
Coupling Finite Elements
HAR elements
Interfacial Transition Zone
Multiscale model
Recycled Aggregate Concrete
title_short A concurrent multiscale approach for modeling recycled aggregate concrete
title_full A concurrent multiscale approach for modeling recycled aggregate concrete
title_fullStr A concurrent multiscale approach for modeling recycled aggregate concrete
title_full_unstemmed A concurrent multiscale approach for modeling recycled aggregate concrete
title_sort A concurrent multiscale approach for modeling recycled aggregate concrete
author Rodrigues, Eduardo A. [UNESP]
author_facet Rodrigues, Eduardo A. [UNESP]
Gimenes, Marcela [UNESP]
Bitencourt, Luís A.G.
Manzoli, Osvaldo L. [UNESP]
author_role author
author2 Gimenes, Marcela [UNESP]
Bitencourt, Luís A.G.
Manzoli, Osvaldo L. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Rodrigues, Eduardo A. [UNESP]
Gimenes, Marcela [UNESP]
Bitencourt, Luís A.G.
Manzoli, Osvaldo L. [UNESP]
dc.subject.por.fl_str_mv Coupling Finite Elements
HAR elements
Interfacial Transition Zone
Multiscale model
Recycled Aggregate Concrete
topic Coupling Finite Elements
HAR elements
Interfacial Transition Zone
Multiscale model
Recycled Aggregate Concrete
description The use of recycled concrete aggregates in new concrete is an alternative that can provide economical and environmental benefits. However, the influence of the inert particles on the mechanical behavior of concrete needs to be better understood. To provide a comprehensive simulator to predict the failure mechanism of this material taking into account its heterogeneity in mesoscale, a mesh fragmentation technique composed of interface solid finite elements equipped with a tensile damage model is employed. To minimize computational costs, a concurrent multiscale strategy based on the use of coupling finite elements to connect the macro and mesoscale regions is adopted. In mesoscale, the different phases of the recycled aggregate concrete (RAC) are explicitly represented, consisting of: (i) new mortar matrix; (ii) recycled aggregate composed of old matrix and crushed rock (natural aggregate); and (iii) interfacial transition zones in between all of them. For the regions where cracks are not expected, homogenized elastic parameters are assumed for the RAC. Three-point bending beams experimentally tested by Casuccio et al. [4] are numerically analyzed for concrete with compressive strength targets of 18, 37 and 48 MPa. These concrete beams were produced with coarse aggregates derived from natural crushed stone and another two coming from recycled concrete with high and normal strengths. The numerical results obtained show that the concurrent multiscale model is able to represent the tensile failure mechanism of the RAC, taking into account explicitly the effects of the recycled components on crack patterns and structural predictions.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:15:20Z
2021-06-25T10:15:20Z
2021-01-18
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.conbuildmat.2020.121040
Construction and Building Materials, v. 267.
0950-0618
http://hdl.handle.net/11449/205437
10.1016/j.conbuildmat.2020.121040
2-s2.0-85095566827
url http://dx.doi.org/10.1016/j.conbuildmat.2020.121040
http://hdl.handle.net/11449/205437
identifier_str_mv Construction and Building Materials, v. 267.
0950-0618
10.1016/j.conbuildmat.2020.121040
2-s2.0-85095566827
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Construction and Building Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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