Prediction of the fatigue limit of blunt-notched components

Autores
Chapetti, Mirco Daniel
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A prediction of the fatigue limit of blunt-notched components of a low carbon steel was made on the basis that the fatigue limit of polycrystalline metals represents the critical conditions for the propagation of nucleated cracks. An expression for the material resistance to crack propagation as a function of the crack length is obtained for the first part of the short crack regime, which defines the blunt notch sensitivity to fatigue. The material resistance curve is modeled from a depth d, given by the position of the strongest microstructural barrier to microstructurally short crack propagation, which defines the plain fatigue limit. A microstructural threshold, ΔKd, is suggested as an intrinsic material resistance to microstructurally short crack propagation, defined by the plain fatigue limit Δσe0 and the position of the strongest microstructural barrier d. The modeled notch sensitivity fits reasonably well the experimental results for a low carbon steel.
Fil: Chapetti, Mirco Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
Fatigue Limit
Blunt Notches
Notch Sensitivity
Microstructural Barriers
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/40130
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/40130
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Prediction of the fatigue limit of blunt-notched componentsChapetti, Mirco DanielFatigue LimitBlunt NotchesNotch SensitivityMicrostructural BarriersA prediction of the fatigue limit of blunt-notched components of a low carbon steel was made on the basis that the fatigue limit of polycrystalline metals represents the critical conditions for the propagation of nucleated cracks. An expression for the material resistance to crack propagation as a function of the crack length is obtained for the first part of the short crack regime, which defines the blunt notch sensitivity to fatigue. The material resistance curve is modeled from a depth d, given by the position of the strongest microstructural barrier to microstructurally short crack propagation, which defines the plain fatigue limit. A microstructural threshold, ΔKd, is suggested as an intrinsic material resistance to microstructurally short crack propagation, defined by the plain fatigue limit Δσe0 and the position of the strongest microstructural barrier d. The modeled notch sensitivity fits reasonably well the experimental results for a low carbon steel.Fil: Chapetti, Mirco Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaElsevier2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/40130Chapetti, Mirco Daniel; Prediction of the fatigue limit of blunt-notched components; Elsevier; International Journal of Fatigue; 23; 12-2001; 171-1760142-1123CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0142-1123(01)00126-8info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0142112301001268info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:37:38Zoai:ri.conicet.gov.ar:11336/40130instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:37:38.949CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Prediction of the fatigue limit of blunt-notched components
title Prediction of the fatigue limit of blunt-notched components
spellingShingle Prediction of the fatigue limit of blunt-notched components
Chapetti, Mirco Daniel
Fatigue Limit
Blunt Notches
Notch Sensitivity
Microstructural Barriers
title_short Prediction of the fatigue limit of blunt-notched components
title_full Prediction of the fatigue limit of blunt-notched components
title_fullStr Prediction of the fatigue limit of blunt-notched components
title_full_unstemmed Prediction of the fatigue limit of blunt-notched components
title_sort Prediction of the fatigue limit of blunt-notched components
dc.creator.none.fl_str_mv Chapetti, Mirco Daniel
author Chapetti, Mirco Daniel
author_facet Chapetti, Mirco Daniel
author_role author
dc.subject.none.fl_str_mv Fatigue Limit
Blunt Notches
Notch Sensitivity
Microstructural Barriers
topic Fatigue Limit
Blunt Notches
Notch Sensitivity
Microstructural Barriers
dc.description.none.fl_txt_mv A prediction of the fatigue limit of blunt-notched components of a low carbon steel was made on the basis that the fatigue limit of polycrystalline metals represents the critical conditions for the propagation of nucleated cracks. An expression for the material resistance to crack propagation as a function of the crack length is obtained for the first part of the short crack regime, which defines the blunt notch sensitivity to fatigue. The material resistance curve is modeled from a depth d, given by the position of the strongest microstructural barrier to microstructurally short crack propagation, which defines the plain fatigue limit. A microstructural threshold, ΔKd, is suggested as an intrinsic material resistance to microstructurally short crack propagation, defined by the plain fatigue limit Δσe0 and the position of the strongest microstructural barrier d. The modeled notch sensitivity fits reasonably well the experimental results for a low carbon steel.
Fil: Chapetti, Mirco Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description A prediction of the fatigue limit of blunt-notched components of a low carbon steel was made on the basis that the fatigue limit of polycrystalline metals represents the critical conditions for the propagation of nucleated cracks. An expression for the material resistance to crack propagation as a function of the crack length is obtained for the first part of the short crack regime, which defines the blunt notch sensitivity to fatigue. The material resistance curve is modeled from a depth d, given by the position of the strongest microstructural barrier to microstructurally short crack propagation, which defines the plain fatigue limit. A microstructural threshold, ΔKd, is suggested as an intrinsic material resistance to microstructurally short crack propagation, defined by the plain fatigue limit Δσe0 and the position of the strongest microstructural barrier d. The modeled notch sensitivity fits reasonably well the experimental results for a low carbon steel.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/40130
Chapetti, Mirco Daniel; Prediction of the fatigue limit of blunt-notched components; Elsevier; International Journal of Fatigue; 23; 12-2001; 171-176
0142-1123
CONICET Digital
CONICET
url http://hdl.handle.net/11336/40130
identifier_str_mv Chapetti, Mirco Daniel; Prediction of the fatigue limit of blunt-notched components; Elsevier; International Journal of Fatigue; 23; 12-2001; 171-176
0142-1123
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0142-1123(01)00126-8
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0142112301001268
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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