Effect of crack flank holes on fatigue crack growth

Detalhes bibliográficos
Autor(a) principal: Neto, D. M.
Data de Publicação: 2023
Outros Autores: Cavaleiro, N., Sérgio, Edmundo R., Jesus, J. S. de, Camacho-Reyes, A., Antunes, F.V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Texto Completo: https://hdl.handle.net/10316/116874
https://doi.org/10.1016/j.ijfatigue.2023.107505
Resumo: The effect of drilling two symmetric holes along the crack flanks on the fatigue crack growth (FCG) rate was evaluated numerically. The FCG increases (decreases) when the crack tip is behind (ahead) the holes. This behaviour is enlarged both by increasing the diameter of the holes and by reducing the distance between them. This is consequence of the geometrical effect, which modifies the plastic zone size. Experimental work validated the numerical model, indicating that that cumulative plastic strain at the crack tip is an adequate crack driving force and that cyclic plastic deformation is the main damage mechanism of FCG.
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spelling Effect of crack flank holes on fatigue crack growthFatigue crack growthCT specimenCrack flank holesCrack closureNumerical simulationThe effect of drilling two symmetric holes along the crack flanks on the fatigue crack growth (FCG) rate was evaluated numerically. The FCG increases (decreases) when the crack tip is behind (ahead) the holes. This behaviour is enlarged both by increasing the diameter of the holes and by reducing the distance between them. This is consequence of the geometrical effect, which modifies the plastic zone size. Experimental work validated the numerical model, indicating that that cumulative plastic strain at the crack tip is an adequate crack driving force and that cyclic plastic deformation is the main damage mechanism of FCG.Portuguese Foundation of Science and Technology (FCT) under the projects UIDB/00285/2020 and LA/P/0112/2020. FCT for the PhD grant with reference 2022.11438. BD.Elsevier2023-01-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://hdl.handle.net/10316/116874https://hdl.handle.net/10316/116874https://doi.org/10.1016/j.ijfatigue.2023.107505eng01421123https://www.sciencedirect.com/science/article/pii/S0142112323000063?via%3DihubNeto, D. M.Cavaleiro, N.Sérgio, Edmundo R.Jesus, J. S. deCamacho-Reyes, A.Antunes, F.V.info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-11-18T16:40:03Zoai:estudogeral.uc.pt:10316/116874Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T06:10:32.534599Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Effect of crack flank holes on fatigue crack growth
title Effect of crack flank holes on fatigue crack growth
spellingShingle Effect of crack flank holes on fatigue crack growth
Neto, D. M.
Fatigue crack growth
CT specimen
Crack flank holes
Crack closure
Numerical simulation
title_short Effect of crack flank holes on fatigue crack growth
title_full Effect of crack flank holes on fatigue crack growth
title_fullStr Effect of crack flank holes on fatigue crack growth
title_full_unstemmed Effect of crack flank holes on fatigue crack growth
title_sort Effect of crack flank holes on fatigue crack growth
author Neto, D. M.
author_facet Neto, D. M.
Cavaleiro, N.
Sérgio, Edmundo R.
Jesus, J. S. de
Camacho-Reyes, A.
Antunes, F.V.
author_role author
author2 Cavaleiro, N.
Sérgio, Edmundo R.
Jesus, J. S. de
Camacho-Reyes, A.
Antunes, F.V.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Neto, D. M.
Cavaleiro, N.
Sérgio, Edmundo R.
Jesus, J. S. de
Camacho-Reyes, A.
Antunes, F.V.
dc.subject.por.fl_str_mv Fatigue crack growth
CT specimen
Crack flank holes
Crack closure
Numerical simulation
topic Fatigue crack growth
CT specimen
Crack flank holes
Crack closure
Numerical simulation
description The effect of drilling two symmetric holes along the crack flanks on the fatigue crack growth (FCG) rate was evaluated numerically. The FCG increases (decreases) when the crack tip is behind (ahead) the holes. This behaviour is enlarged both by increasing the diameter of the holes and by reducing the distance between them. This is consequence of the geometrical effect, which modifies the plastic zone size. Experimental work validated the numerical model, indicating that that cumulative plastic strain at the crack tip is an adequate crack driving force and that cyclic plastic deformation is the main damage mechanism of FCG.
publishDate 2023
dc.date.none.fl_str_mv 2023-01-07
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 https://hdl.handle.net/10316/116874
https://hdl.handle.net/10316/116874
https://doi.org/10.1016/j.ijfatigue.2023.107505
url https://hdl.handle.net/10316/116874
https://doi.org/10.1016/j.ijfatigue.2023.107505
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 01421123
https://www.sciencedirect.com/science/article/pii/S0142112323000063?via%3Dihub
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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