Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship

Detalhes bibliográficos
Autor(a) principal: Ahmad,H.
Data de Publicação: 2021
Outros Autores: Sugiman,S., Jaini,Z.M., Omar,A.Z.
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=S1679-78252021000500506
Resumo: Abstract The aim of the current project is to carry out the FEA framework for predicting the flexural strength of notched foam concrete tested under three-point bending following the conducted experimental set-up. The investigated testing series have a variation of notch size opening in the foamed concrete beam. The Traction-separation relationship was used as a constitutive model to incorporate independent material properties and used in the modelling framework. Modelling techniques of 2D XFEM and CZM were adopted and later expanded to 3D XFEM models. Good agreement was found between the predicted structure response and experimental observation for all the investigated models. Crack was initiated at the crack tip and propagated to the beam edge under the applied load. It was found that the average discrepancies below 20% were found within XFEM techniques. Less agreement was found using the CZM models, partly due to the simplification of the adopted failure path. The modelling framework implemented in this project is potentially used as a predictive tool in estimating the flexural strength of the concrete beam with notches.
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spelling Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation RelationshipConcreteNotched beamFractureFinite element analysis (FEA)Strength predictionAbstract The aim of the current project is to carry out the FEA framework for predicting the flexural strength of notched foam concrete tested under three-point bending following the conducted experimental set-up. The investigated testing series have a variation of notch size opening in the foamed concrete beam. The Traction-separation relationship was used as a constitutive model to incorporate independent material properties and used in the modelling framework. Modelling techniques of 2D XFEM and CZM were adopted and later expanded to 3D XFEM models. Good agreement was found between the predicted structure response and experimental observation for all the investigated models. Crack was initiated at the crack tip and propagated to the beam edge under the applied load. It was found that the average discrepancies below 20% were found within XFEM techniques. Less agreement was found using the CZM models, partly due to the simplification of the adopted failure path. The modelling framework implemented in this project is potentially used as a predictive tool in estimating the flexural strength of the concrete beam with notches.Associação Brasileira de Ciências Mecânicas2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000500506Latin American Journal of Solids and Structures v.18 n.5 2021reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78256330info:eu-repo/semantics/openAccessAhmad,H.Sugiman,S.Jaini,Z.M.Omar,A.Z.eng2021-07-16T00:00:00Zoai:scielo:S1679-78252021000500506Revistahttp://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:2021-07-16T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
title Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
spellingShingle Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
Ahmad,H.
Concrete
Notched beam
Fracture
Finite element analysis (FEA)
Strength prediction
title_short Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
title_full Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
title_fullStr Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
title_full_unstemmed Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
title_sort Numerical Modelling of Foamed Concrete Beam under Flexural Using Traction-Separation Relationship
author Ahmad,H.
author_facet Ahmad,H.
Sugiman,S.
Jaini,Z.M.
Omar,A.Z.
author_role author
author2 Sugiman,S.
Jaini,Z.M.
Omar,A.Z.
author2_role author
author
author
dc.contributor.author.fl_str_mv Ahmad,H.
Sugiman,S.
Jaini,Z.M.
Omar,A.Z.
dc.subject.por.fl_str_mv Concrete
Notched beam
Fracture
Finite element analysis (FEA)
Strength prediction
topic Concrete
Notched beam
Fracture
Finite element analysis (FEA)
Strength prediction
description Abstract The aim of the current project is to carry out the FEA framework for predicting the flexural strength of notched foam concrete tested under three-point bending following the conducted experimental set-up. The investigated testing series have a variation of notch size opening in the foamed concrete beam. The Traction-separation relationship was used as a constitutive model to incorporate independent material properties and used in the modelling framework. Modelling techniques of 2D XFEM and CZM were adopted and later expanded to 3D XFEM models. Good agreement was found between the predicted structure response and experimental observation for all the investigated models. Crack was initiated at the crack tip and propagated to the beam edge under the applied load. It was found that the average discrepancies below 20% were found within XFEM techniques. Less agreement was found using the CZM models, partly due to the simplification of the adopted failure path. The modelling framework implemented in this project is potentially used as a predictive tool in estimating the flexural strength of the concrete beam with notches.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
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=S1679-78252021000500506
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000500506
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78256330
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.18 n.5 2021
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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