Model for fatigue crack growth analysis
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10316/101393 https://doi.org/10.1016/j.prostr.2020.04.030 |
Resumo: | precisely. A literature review about analytical models showed a great number of models developed for specific materials and loading conditions. A numerical analysis of a CT specimen made of 304L stainless steel showed the complex influence of material parameters on FCG, which also depends on loading parameters, geometry and environmental conditions. Therefore an alternative to analytical models is proposed here, based on plastic CTOD, assuming that this is the crack driving force. A material law must be first obtained relating da/dN with plastic CTOD range, p, obtained numerically using the finite element method or experimentally using DIC. This law changes with material and includes all material parameters and also environmental conditions (temperature and atmosphere) . The design of a specific cracked component is made using numerical tools in order to obtain p for different crack lengths. This second analysis includes the effect of geometrical and loading parameters. |
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Model for fatigue crack growth analysisFatigue crack growthAnalytical modelsCrack Tip Opening Displacement (CTOD)precisely. A literature review about analytical models showed a great number of models developed for specific materials and loading conditions. A numerical analysis of a CT specimen made of 304L stainless steel showed the complex influence of material parameters on FCG, which also depends on loading parameters, geometry and environmental conditions. Therefore an alternative to analytical models is proposed here, based on plastic CTOD, assuming that this is the crack driving force. A material law must be first obtained relating da/dN with plastic CTOD range, p, obtained numerically using the finite element method or experimentally using DIC. This law changes with material and includes all material parameters and also environmental conditions (temperature and atmosphere) . The design of a specific cracked component is made using numerical tools in order to obtain p for different crack lengths. This second analysis includes the effect of geometrical and loading parameters.project no. 028789, financed by the European Regional Development Fund (FEDER), through the Portugal-2020 program (PT2020), under the Regional Operational Program of the Center (CENTRO-01-0145-FEDER-028789) and the Foundation for Science and Technology IP/MCTES through national funds (PIDDAC).2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/101393http://hdl.handle.net/10316/101393https://doi.org/10.1016/j.prostr.2020.04.030eng24523216Borges, M. F. M.Antunes, F. V.Prates, P.Branco, R.Vasco-Olmo, J. M.Díaz, F. A.info: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:RCAAP2023-04-06T10:20:30Zoai:estudogeral.uc.pt:10316/101393Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:18:35.767385Repositório 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 |
Model for fatigue crack growth analysis |
title |
Model for fatigue crack growth analysis |
spellingShingle |
Model for fatigue crack growth analysis Borges, M. F. M. Fatigue crack growth Analytical models Crack Tip Opening Displacement (CTOD) |
title_short |
Model for fatigue crack growth analysis |
title_full |
Model for fatigue crack growth analysis |
title_fullStr |
Model for fatigue crack growth analysis |
title_full_unstemmed |
Model for fatigue crack growth analysis |
title_sort |
Model for fatigue crack growth analysis |
author |
Borges, M. F. M. |
author_facet |
Borges, M. F. M. Antunes, F. V. Prates, P. Branco, R. Vasco-Olmo, J. M. Díaz, F. A. |
author_role |
author |
author2 |
Antunes, F. V. Prates, P. Branco, R. Vasco-Olmo, J. M. Díaz, F. A. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Borges, M. F. M. Antunes, F. V. Prates, P. Branco, R. Vasco-Olmo, J. M. Díaz, F. A. |
dc.subject.por.fl_str_mv |
Fatigue crack growth Analytical models Crack Tip Opening Displacement (CTOD) |
topic |
Fatigue crack growth Analytical models Crack Tip Opening Displacement (CTOD) |
description |
precisely. A literature review about analytical models showed a great number of models developed for specific materials and loading conditions. A numerical analysis of a CT specimen made of 304L stainless steel showed the complex influence of material parameters on FCG, which also depends on loading parameters, geometry and environmental conditions. Therefore an alternative to analytical models is proposed here, based on plastic CTOD, assuming that this is the crack driving force. A material law must be first obtained relating da/dN with plastic CTOD range, p, obtained numerically using the finite element method or experimentally using DIC. This law changes with material and includes all material parameters and also environmental conditions (temperature and atmosphere) . The design of a specific cracked component is made using numerical tools in order to obtain p for different crack lengths. This second analysis includes the effect of geometrical and loading parameters. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 |
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/10316/101393 http://hdl.handle.net/10316/101393 https://doi.org/10.1016/j.prostr.2020.04.030 |
url |
http://hdl.handle.net/10316/101393 https://doi.org/10.1016/j.prostr.2020.04.030 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
24523216 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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