2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique

Detalhes bibliográficos
Autor(a) principal: Gimenes, Marcela [UNESP]
Data de Publicação: 2023
Outros Autores: Rodrigues, Eduardo A. [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.ijsolstr.2022.112031
http://hdl.handle.net/11449/246379
Resumo: The computational prediction of the failure processes of concrete under compression is still a challenge. Several researchers have proposed mesoscale models to have a better understanding of the influence of the distinct phases of the concrete on the fracture process. In this sense, this work proposes an extension of the mesoscale model proposed by Rodrigues et al. (2016) to describe the complex failure behavior of concrete under compression. In the proposed 2D approach, two layers of interface elements are inserted into the standard finite element mesh to define the potential crack paths using the mesh fragmentation technique. Each layer is formed by a pair of high aspect ratio elements and is responsible for modeling the tensile or frictional shear failure behavior. According to this approach, the compressive failure is a consequence of the combination between tensile and shear failure modes in the mesoscopic scale. The use of these two damage models allows to represent the debonding (opening) between the aggregates and matrix due to local tensile stress concentration, i.e. the fracture propagation in mode-I, as well as the sliding process corresponding to the fracture propagation in mode-II. Furthermore, adopting adequate parameters, these models allow representing the friction condition between the concrete specimen and the steel loading plates. The failure behavior of compression tests with different specimen slenderness as well as the different friction restraints between loading platen and concrete specimen is predicted. The numerical results are compared qualitatively and quantitatively against the experimental results found in the literature, demonstrating that the proposed approach is able to describe the failure process of concrete in compression.
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spelling 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation techniqueCompressive behaviorConcreteMesh fragmentation techniqueMesoscale modelThe computational prediction of the failure processes of concrete under compression is still a challenge. Several researchers have proposed mesoscale models to have a better understanding of the influence of the distinct phases of the concrete on the fracture process. In this sense, this work proposes an extension of the mesoscale model proposed by Rodrigues et al. (2016) to describe the complex failure behavior of concrete under compression. In the proposed 2D approach, two layers of interface elements are inserted into the standard finite element mesh to define the potential crack paths using the mesh fragmentation technique. Each layer is formed by a pair of high aspect ratio elements and is responsible for modeling the tensile or frictional shear failure behavior. According to this approach, the compressive failure is a consequence of the combination between tensile and shear failure modes in the mesoscopic scale. The use of these two damage models allows to represent the debonding (opening) between the aggregates and matrix due to local tensile stress concentration, i.e. the fracture propagation in mode-I, as well as the sliding process corresponding to the fracture propagation in mode-II. Furthermore, adopting adequate parameters, these models allow representing the friction condition between the concrete specimen and the steel loading plates. The failure behavior of compression tests with different specimen slenderness as well as the different friction restraints between loading platen and concrete specimen is predicted. The numerical results are compared qualitatively and quantitatively against the experimental results found in the literature, demonstrating that the proposed approach is able to describe the failure process of concrete in compression.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)São Paulo State University Department of Civil Engineering Universidade Estadual Paulista - UNESPPolytechnic School at the University of São Paulo Department of Structural and Geotechnical Engineering, Av. Prof. Almeida Prado - Travessa do Biênio, no 83, Edifício Paula Souza (Engenharia Civil), Universidade de São Paulo - USPSão Paulo State University Department of Civil Engineering Universidade Estadual Paulista - UNESPFAPESP: 2020/16789-6CNPq: 310223/2020-2CNPq: 310401/2019-4Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Gimenes, Marcela [UNESP]Rodrigues, Eduardo A. [UNESP]Bitencourt, Luís A.G.Manzoli, Osvaldo L. [UNESP]2023-07-29T12:39:23Z2023-07-29T12:39:23Z2023-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.ijsolstr.2022.112031International Journal of Solids and Structures, v. 260-261.0020-7683http://hdl.handle.net/11449/24637910.1016/j.ijsolstr.2022.1120312-s2.0-85142729786Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Solids and Structuresinfo:eu-repo/semantics/openAccess2023-07-29T12:39:23Zoai:repositorio.unesp.br:11449/246379Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:05:13.842729Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
title 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
spellingShingle 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
Gimenes, Marcela [UNESP]
Compressive behavior
Concrete
Mesh fragmentation technique
Mesoscale model
title_short 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
title_full 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
title_fullStr 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
title_full_unstemmed 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
title_sort 2D mesoscale modeling of compressive fracture in concrete using a mesh fragmentation technique
author Gimenes, Marcela [UNESP]
author_facet Gimenes, Marcela [UNESP]
Rodrigues, Eduardo A. [UNESP]
Bitencourt, Luís A.G.
Manzoli, Osvaldo L. [UNESP]
author_role author
author2 Rodrigues, Eduardo A. [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 Gimenes, Marcela [UNESP]
Rodrigues, Eduardo A. [UNESP]
Bitencourt, Luís A.G.
Manzoli, Osvaldo L. [UNESP]
dc.subject.por.fl_str_mv Compressive behavior
Concrete
Mesh fragmentation technique
Mesoscale model
topic Compressive behavior
Concrete
Mesh fragmentation technique
Mesoscale model
description The computational prediction of the failure processes of concrete under compression is still a challenge. Several researchers have proposed mesoscale models to have a better understanding of the influence of the distinct phases of the concrete on the fracture process. In this sense, this work proposes an extension of the mesoscale model proposed by Rodrigues et al. (2016) to describe the complex failure behavior of concrete under compression. In the proposed 2D approach, two layers of interface elements are inserted into the standard finite element mesh to define the potential crack paths using the mesh fragmentation technique. Each layer is formed by a pair of high aspect ratio elements and is responsible for modeling the tensile or frictional shear failure behavior. According to this approach, the compressive failure is a consequence of the combination between tensile and shear failure modes in the mesoscopic scale. The use of these two damage models allows to represent the debonding (opening) between the aggregates and matrix due to local tensile stress concentration, i.e. the fracture propagation in mode-I, as well as the sliding process corresponding to the fracture propagation in mode-II. Furthermore, adopting adequate parameters, these models allow representing the friction condition between the concrete specimen and the steel loading plates. The failure behavior of compression tests with different specimen slenderness as well as the different friction restraints between loading platen and concrete specimen is predicted. The numerical results are compared qualitatively and quantitatively against the experimental results found in the literature, demonstrating that the proposed approach is able to describe the failure process of concrete in compression.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-29T12:39:23Z
2023-07-29T12:39:23Z
2023-01-01
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.ijsolstr.2022.112031
International Journal of Solids and Structures, v. 260-261.
0020-7683
http://hdl.handle.net/11449/246379
10.1016/j.ijsolstr.2022.112031
2-s2.0-85142729786
url http://dx.doi.org/10.1016/j.ijsolstr.2022.112031
http://hdl.handle.net/11449/246379
identifier_str_mv International Journal of Solids and Structures, v. 260-261.
0020-7683
10.1016/j.ijsolstr.2022.112031
2-s2.0-85142729786
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv International Journal of Solids and Structures
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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