Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/12751 |
Resumo: | The capability of a multi-directional fixed smeared crack constitutive model to simulate the flexural/punching failure modes of fiber reinforced concrete (FRC) laminar structures is discussed. The constitutive model is implemented in a computer program based on the finite element method, where the FRC laminar structures were simulated according to the Reissner-Mindlin shell theory. The shell is discretized into layers for the simulation of the membrane, bending and out-of-plane shear nonlinear behavior. A stress-strain softening diagram is proposed to reproduce, after crack initiation, the evolution of the normal crack component. The in-plane shear crack component is obtained using the concept of shear retention factor, defined by a crack-strain dependent law. To capture the punching failure mode, a softening diagram is proposed to simulate the decrease of the out-of-plane shear stress components with the increase of the corresponding shear strain components, after crack initiation. With this relatively simple approach, accurate predictions of the behavior of FRC structures failing in bending and in shear can be obtained. To assess the predictive performance of the model, a punching experimental test of a module of a façade panel fabricated with steel fiber reinforced self-compacting concrete is numerically simulated. The influence of some parameters defining the softening diagrams is discussed. |
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Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structuresSmeared crack modelPunchingShear softening diagramMaterial nonlinear analysisSteel fiber reinforced Self-Compacting ConcreteInverse analysisScience & TechnologyThe capability of a multi-directional fixed smeared crack constitutive model to simulate the flexural/punching failure modes of fiber reinforced concrete (FRC) laminar structures is discussed. The constitutive model is implemented in a computer program based on the finite element method, where the FRC laminar structures were simulated according to the Reissner-Mindlin shell theory. The shell is discretized into layers for the simulation of the membrane, bending and out-of-plane shear nonlinear behavior. A stress-strain softening diagram is proposed to reproduce, after crack initiation, the evolution of the normal crack component. The in-plane shear crack component is obtained using the concept of shear retention factor, defined by a crack-strain dependent law. To capture the punching failure mode, a softening diagram is proposed to simulate the decrease of the out-of-plane shear stress components with the increase of the corresponding shear strain components, after crack initiation. With this relatively simple approach, accurate predictions of the behavior of FRC structures failing in bending and in shear can be obtained. To assess the predictive performance of the model, a punching experimental test of a module of a façade panel fabricated with steel fiber reinforced self-compacting concrete is numerically simulated. The influence of some parameters defining the softening diagrams is discussed.The authors wish to acknowledge the support provided by the Portuguese Science and Technology Foundation (FCT) by means of the project PTDC/ECM/73099/2006 "CUTINEMO-Carbon fiber laminates applied according to the near surface mounted technique to increase the flexural resistance to negative moments of continuous reinforced concrete structures". The first author acknowledges the financial support of FCT, PhD Grant number SFRH/BD/23326/2005.ElsevierUniversidade do MinhoBarros, Joaquim A. O.Gouveia, A. VenturaAzevedo, Álvaro F. M.2011-07-082011-07-08T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/12751eng0263-822310.12989/cac.2011.8.6.735info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:26:54Zoai:repositorium.sdum.uminho.pt:1822/12751Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:21:24.449559Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
title |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
spellingShingle |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures Barros, Joaquim A. O. Smeared crack model Punching Shear softening diagram Material nonlinear analysis Steel fiber reinforced Self-Compacting Concrete Inverse analysis Science & Technology |
title_short |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
title_full |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
title_fullStr |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
title_full_unstemmed |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
title_sort |
Crack constitutive model for the prediction of punching failure modes of fiber reinforced concrete laminar structures |
author |
Barros, Joaquim A. O. |
author_facet |
Barros, Joaquim A. O. Gouveia, A. Ventura Azevedo, Álvaro F. M. |
author_role |
author |
author2 |
Gouveia, A. Ventura Azevedo, Álvaro F. M. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Barros, Joaquim A. O. Gouveia, A. Ventura Azevedo, Álvaro F. M. |
dc.subject.por.fl_str_mv |
Smeared crack model Punching Shear softening diagram Material nonlinear analysis Steel fiber reinforced Self-Compacting Concrete Inverse analysis Science & Technology |
topic |
Smeared crack model Punching Shear softening diagram Material nonlinear analysis Steel fiber reinforced Self-Compacting Concrete Inverse analysis Science & Technology |
description |
The capability of a multi-directional fixed smeared crack constitutive model to simulate the flexural/punching failure modes of fiber reinforced concrete (FRC) laminar structures is discussed. The constitutive model is implemented in a computer program based on the finite element method, where the FRC laminar structures were simulated according to the Reissner-Mindlin shell theory. The shell is discretized into layers for the simulation of the membrane, bending and out-of-plane shear nonlinear behavior. A stress-strain softening diagram is proposed to reproduce, after crack initiation, the evolution of the normal crack component. The in-plane shear crack component is obtained using the concept of shear retention factor, defined by a crack-strain dependent law. To capture the punching failure mode, a softening diagram is proposed to simulate the decrease of the out-of-plane shear stress components with the increase of the corresponding shear strain components, after crack initiation. With this relatively simple approach, accurate predictions of the behavior of FRC structures failing in bending and in shear can be obtained. To assess the predictive performance of the model, a punching experimental test of a module of a façade panel fabricated with steel fiber reinforced self-compacting concrete is numerically simulated. The influence of some parameters defining the softening diagrams is discussed. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07-08 2011-07-08T00:00:00Z |
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://hdl.handle.net/1822/12751 |
url |
http://hdl.handle.net/1822/12751 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0263-8223 10.12989/cac.2011.8.6.735 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132680847097856 |