Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading

Detalhes bibliográficos
Autor(a) principal: Melo, Rafael Leandro Fernandes
Data de Publicação: 2021
Outros Autores: Moura Filho, Adroaldo José Silva de, Montezuma, Marcos Fábio Veríssimo, Deus, Enio Pontes de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/13670
Resumo: Steel bridges are normally subjected to random loads with different traffic frequencies. This way, steel bridges are structures of dynamic behavior and are subjected to fatigue failure process. After localizing and determine the amplitude of an existing flaw, its important predicts crack propagation and the convenient repair time. At this work, the fatigue crack propagation on steel beam bridges, has been studied under different spectrum of variable-amplitude loading. To study the fatigue crack growth was developed a computational code, using the Root Mean Square (RMS) and the Cycle-by-Cycle models. Different loads histories and initial crack length were considered input variables. This way was evaluating the dispersion of results of the expected structural life choosing different initial parameters.
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spelling Proposal for a computational modeling for crack propagation in bridge beams under cyclic loadingPropuesta de modelado computacional para la propagación de fisuras en vigas de puentes bajo carga cíclicaProposta de uma modelagem computacional para propagação de trincas em vigas de pontes sob carregamento cíclicoPuentesCarga cíclicaPropagación del crack.PontesCarregamento cíclicoPropagação de trincas.BridgesCyclic loadingCrack propagation.Steel bridges are normally subjected to random loads with different traffic frequencies. This way, steel bridges are structures of dynamic behavior and are subjected to fatigue failure process. After localizing and determine the amplitude of an existing flaw, its important predicts crack propagation and the convenient repair time. At this work, the fatigue crack propagation on steel beam bridges, has been studied under different spectrum of variable-amplitude loading. To study the fatigue crack growth was developed a computational code, using the Root Mean Square (RMS) and the Cycle-by-Cycle models. Different loads histories and initial crack length were considered input variables. This way was evaluating the dispersion of results of the expected structural life choosing different initial parameters.Los puentes de acero suelen estar sujetos a cargas cíclicas de amplitud variable con tipos y frecuencias de tráfico aleatorios. Los puentes de acero, por ser estructuras de comportamiento dinámico, están sujetos a fallas por fatiga. Al determinar la ubicación y la amplitud de una falla existente, existe una preocupación inmediata con el pronóstico de su propagación para tener un tiempo de reparación conveniente. Este trabajo evaluó el problema de la propagación de fisuras por fatiga en vigas de puentes de acero bajo diferentes espectros de cargas cíclicas de amplitud variable. Se desarrolló un programa de computadora para analizar el crecimiento de grietas utilizando los modelos Root Mean Square (RMS) y Cycle-by-Cycle. Se consideraron como variables de entrada del programa diferentes tamaños iniciales de grietas y diferentes historiales de carga. Con esto, se evaluó la dispersión de los resultados de vida esperados de la estructura con la variación de los diferentes parámetros de entrada.Pontes de aço normalmente estão sujeitas a carregamentos cíclicos de amplitude variável com tipo e frequência de tráfego ao acaso. As pontes de aço, por serem estruturas de comportamento dinâmico, estão sujeitas a falhar por processo de fadiga. Determinando a localização e a amplitude de uma falha existente, tem-se de imediato a preocupação com a previsão de propagação da mesma a fim de ter-se um tempo conveniente de reparo. Este trabalho avaliou-se o problema de propagação de trincas de fadiga em vigas de pontes de aço sob diferentes espectros de carregamentos cíclicos de amplitude variável. Foi desenvolvido um programa computacional para a análise do crescimento das trincas utilizando-se os modelos do Valor Médio Quadrático (Root Mean Square – RMS) e Ciclo-a-Ciclo. Considerou-se como variáveis de entrada do programa diferentes tamanhos iniciais de trincas e diferentes histórias de carregamentos. Com isso, avaliou-se a dispersão dos resultados de vida esperada da estrutura com a variação dos diferentes parâmetros de entrada.Research, Society and Development2021-03-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1367010.33448/rsd-v10i3.13670Research, Society and Development; Vol. 10 No. 3; e57510313670Research, Society and Development; Vol. 10 Núm. 3; e57510313670Research, Society and Development; v. 10 n. 3; e575103136702525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/13670/12320Copyright (c) 2021 Rafael Leandro Fernandes Melo; Adroaldo José Silva de Moura Filho; Marcos Fábio Veríssimo Montezuma; Enio Pontes de Deushttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMelo, Rafael Leandro FernandesMoura Filho, Adroaldo José Silva de Montezuma, Marcos Fábio Veríssimo Deus, Enio Pontes de2021-03-28T12:03:35Zoai:ojs.pkp.sfu.ca:article/13670Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:34:57.479126Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
Propuesta de modelado computacional para la propagación de fisuras en vigas de puentes bajo carga cíclica
Proposta de uma modelagem computacional para propagação de trincas em vigas de pontes sob carregamento cíclico
title Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
spellingShingle Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
Melo, Rafael Leandro Fernandes
Puentes
Carga cíclica
Propagación del crack.
Pontes
Carregamento cíclico
Propagação de trincas.
Bridges
Cyclic loading
Crack propagation.
title_short Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
title_full Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
title_fullStr Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
title_full_unstemmed Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
title_sort Proposal for a computational modeling for crack propagation in bridge beams under cyclic loading
author Melo, Rafael Leandro Fernandes
author_facet Melo, Rafael Leandro Fernandes
Moura Filho, Adroaldo José Silva de
Montezuma, Marcos Fábio Veríssimo
Deus, Enio Pontes de
author_role author
author2 Moura Filho, Adroaldo José Silva de
Montezuma, Marcos Fábio Veríssimo
Deus, Enio Pontes de
author2_role author
author
author
dc.contributor.author.fl_str_mv Melo, Rafael Leandro Fernandes
Moura Filho, Adroaldo José Silva de
Montezuma, Marcos Fábio Veríssimo
Deus, Enio Pontes de
dc.subject.por.fl_str_mv Puentes
Carga cíclica
Propagación del crack.
Pontes
Carregamento cíclico
Propagação de trincas.
Bridges
Cyclic loading
Crack propagation.
topic Puentes
Carga cíclica
Propagación del crack.
Pontes
Carregamento cíclico
Propagação de trincas.
Bridges
Cyclic loading
Crack propagation.
description Steel bridges are normally subjected to random loads with different traffic frequencies. This way, steel bridges are structures of dynamic behavior and are subjected to fatigue failure process. After localizing and determine the amplitude of an existing flaw, its important predicts crack propagation and the convenient repair time. At this work, the fatigue crack propagation on steel beam bridges, has been studied under different spectrum of variable-amplitude loading. To study the fatigue crack growth was developed a computational code, using the Root Mean Square (RMS) and the Cycle-by-Cycle models. Different loads histories and initial crack length were considered input variables. This way was evaluating the dispersion of results of the expected structural life choosing different initial parameters.
publishDate 2021
dc.date.none.fl_str_mv 2021-03-27
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/13670
10.33448/rsd-v10i3.13670
url https://rsdjournal.org/index.php/rsd/article/view/13670
identifier_str_mv 10.33448/rsd-v10i3.13670
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/13670/12320
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 10 No. 3; e57510313670
Research, Society and Development; Vol. 10 Núm. 3; e57510313670
Research, Society and Development; v. 10 n. 3; e57510313670
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052673156972544

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