Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete

The post cracking behavior of steel fiber reinforced concrete (SFRC) subjected to direct tensile stresses is strongly related to the distribution and orientation of the fibers in the crack plane, which can be precisely determined using images obtained by computerized axial tomography (CAT). However,...

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Detalles Bibliográficos
Autores: Lorente Monleón, Sandokan|||0000-0002-6356-0705, Carmona, Sergio, Molins i Borrell, Climent|||0000-0001-8292-0473
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/376925
Acceso en línea:https://hdl.handle.net/2117/376925
https://dx.doi.org/10.1016/j.conbuildmat.2022.128878
Access Level:acceso abierto
Palabra clave:Reinforced concrete construction
Strength of materials
CAT
Fiber orientation factor
Residual strength
Fiber reinforced concrete
Construcció en formigó armat amb fibres
Resistència de materials
Àrees temàtiques de la UPC::Edificació::Materials de construcció::Formigó
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spelling Use of fiber orientation factor to determine residual strength of steel fiber reinforced concreteLorente Monleón, Sandokan|||0000-0002-6356-0705Carmona, SergioMolins i Borrell, Climent|||0000-0001-8292-0473Reinforced concrete constructionStrength of materialsCATFiber orientation factorResidual strengthFiber reinforced concreteConstrucció en formigó armat amb fibresResistència de materialsÀrees temàtiques de la UPC::Edificació::Materials de construcció::FormigóThe post cracking behavior of steel fiber reinforced concrete (SFRC) subjected to direct tensile stresses is strongly related to the distribution and orientation of the fibers in the crack plane, which can be precisely determined using images obtained by computerized axial tomography (CAT). However, these images require processing to relate them to the residual resistances of the SFRC. The objective of this paper is estimating the residual strength of SFRC cores using the fiber orientation coefficient determined from CAT images. Using the orientation coefficient as a single and simple parameter, the percentage of fibers with complete and sufficiently anchored hooks has been determined, which allows (1) estimating the number and orientation of the active fibers in any section of the specimens and (2) establishing the probability that the fibers are active depending on the specimen and the fibers' geometry. Then, the residual strengths of SFRC are computed using the Laranjeira superposition model, obtaining differences with the experimental results, mainly due to the dispersion of the number of fibers in the fracture plane, the different contribution of the fibers and the contribution of the cut fibers.Peer Reviewed20222022-12-1920222022-11-22journal articlehttp://purl.org/coar/resource_type/c_6501AOhttp://purl.org/coar/version/c_b1a7d7d4d402bcceinfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/376925https://dx.doi.org/10.1016/j.conbuildmat.2022.128878reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3769252026-05-27T15:37:01Z
dc.title.none.fl_str_mv Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
title Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
spellingShingle Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
Lorente Monleón, Sandokan|||0000-0002-6356-0705
Reinforced concrete construction
Strength of materials
CAT
Fiber orientation factor
Residual strength
Fiber reinforced concrete
Construcció en formigó armat amb fibres
Resistència de materials
Àrees temàtiques de la UPC::Edificació::Materials de construcció::Formigó
title_short Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
title_full Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
title_fullStr Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
title_full_unstemmed Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
title_sort Use of fiber orientation factor to determine residual strength of steel fiber reinforced concrete
dc.creator.none.fl_str_mv Lorente Monleón, Sandokan|||0000-0002-6356-0705
Carmona, Sergio
Molins i Borrell, Climent|||0000-0001-8292-0473
author Lorente Monleón, Sandokan|||0000-0002-6356-0705
author_facet Lorente Monleón, Sandokan|||0000-0002-6356-0705
Carmona, Sergio
Molins i Borrell, Climent|||0000-0001-8292-0473
author_role author
author2 Carmona, Sergio
Molins i Borrell, Climent|||0000-0001-8292-0473
author2_role author
author
dc.subject.none.fl_str_mv Reinforced concrete construction
Strength of materials
CAT
Fiber orientation factor
Residual strength
Fiber reinforced concrete
Construcció en formigó armat amb fibres
Resistència de materials
Àrees temàtiques de la UPC::Edificació::Materials de construcció::Formigó
topic Reinforced concrete construction
Strength of materials
CAT
Fiber orientation factor
Residual strength
Fiber reinforced concrete
Construcció en formigó armat amb fibres
Resistència de materials
Àrees temàtiques de la UPC::Edificació::Materials de construcció::Formigó
description The post cracking behavior of steel fiber reinforced concrete (SFRC) subjected to direct tensile stresses is strongly related to the distribution and orientation of the fibers in the crack plane, which can be precisely determined using images obtained by computerized axial tomography (CAT). However, these images require processing to relate them to the residual resistances of the SFRC. The objective of this paper is estimating the residual strength of SFRC cores using the fiber orientation coefficient determined from CAT images. Using the orientation coefficient as a single and simple parameter, the percentage of fibers with complete and sufficiently anchored hooks has been determined, which allows (1) estimating the number and orientation of the active fibers in any section of the specimens and (2) establishing the probability that the fibers are active depending on the specimen and the fibers' geometry. Then, the residual strengths of SFRC are computed using the Laranjeira superposition model, obtaining differences with the experimental results, mainly due to the dispersion of the number of fibers in the fracture plane, the different contribution of the fibers and the contribution of the cut fibers.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-12-19
2022
2022-11-22
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AO
http://purl.org/coar/version/c_b1a7d7d4d402bcce
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/376925
https://dx.doi.org/10.1016/j.conbuildmat.2022.128878
url https://hdl.handle.net/2117/376925
https://dx.doi.org/10.1016/j.conbuildmat.2022.128878
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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