A simple model to predict the very high cycle fatigue resistance of steels

Autores
Chapetti, Mirco Daniel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work deals with the very high cycle fatigue behavior of high strength steels where fracture origins are mostly at non-metallic inclusions. From the analysis of several features involved in the crack initiation and propagation processes, and since the fatigue resistance usually observed for metals is mainly due to a microstructural threshold for pure fatigue crack propagation, the following expression is proposed to estimate the internal fatigue resistance for a given fatigue life for fractures produced by cracks initiated from an internal inclusion: rInt e ¼ 444 DKth ffiffiffiffiffiffiffi nRi p where rInt e is given in MPa, the inclusion radio Ri is in lm, n is a dimensionless factor and the pure fatigue crack propagation threshold DKth is equal to the lower value given by the following expressions: DKth ¼ 4:103 ðHV þ 120Þ a1=3 DKth1 ¼ 0:0038 ru þ 15:5 where the pure fatigue crack propagation thresholds DKth (function of crack length) and DKth1 (a constant value for a given tensile strength or hardness) are in MPa m1/2, the crack length a in lm, the Vicker harness HV in kgf/mm2 and the ultimate tensile strength ru in MPa. Such estimation becomes very important in the assessment of the fatigue resistance of components subjected to very high cycle fatigue, as this might become a very expensive and time consuming task.
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
VERY-HIGH CYCLE
STEELS
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:11336/280036
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/280036
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A simple model to predict the very high cycle fatigue resistance of steelsChapetti, Mirco DanielFATIGUEVERY-HIGH CYCLESTEELShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2This work deals with the very high cycle fatigue behavior of high strength steels where fracture origins are mostly at non-metallic inclusions. From the analysis of several features involved in the crack initiation and propagation processes, and since the fatigue resistance usually observed for metals is mainly due to a microstructural threshold for pure fatigue crack propagation, the following expression is proposed to estimate the internal fatigue resistance for a given fatigue life for fractures produced by cracks initiated from an internal inclusion: rInt e ¼ 444 DKth ffiffiffiffiffiffiffi nRi p where rInt e is given in MPa, the inclusion radio Ri is in lm, n is a dimensionless factor and the pure fatigue crack propagation threshold DKth is equal to the lower value given by the following expressions: DKth ¼ 4:103 ðHV þ 120Þ a1=3 DKth1 ¼ 0:0038 ru þ 15:5 where the pure fatigue crack propagation thresholds DKth (function of crack length) and DKth1 (a constant value for a given tensile strength or hardness) are in MPa m1/2, the crack length a in lm, the Vicker harness HV in kgf/mm2 and the ultimate tensile strength ru in MPa. Such estimation becomes very important in the assessment of the fatigue resistance of components subjected to very high cycle fatigue, as this might become a very expensive and time consuming task.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; ArgentinaElsevier2011-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/280036Chapetti, Mirco Daniel; A simple model to predict the very high cycle fatigue resistance of steels; Elsevier; International Journal of Fatigue; 33; 7; 7-2011; 833-8410142-1123CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0142112310003117info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfatigue.2010.12.010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:05:07Zoai:ri.conicet.gov.ar:11336/280036instacron: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:34982026-02-26 10:05:08.255CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A simple model to predict the very high cycle fatigue resistance of steels
title A simple model to predict the very high cycle fatigue resistance of steels
spellingShingle A simple model to predict the very high cycle fatigue resistance of steels
Chapetti, Mirco Daniel
FATIGUE
VERY-HIGH CYCLE
STEELS
title_short A simple model to predict the very high cycle fatigue resistance of steels
title_full A simple model to predict the very high cycle fatigue resistance of steels
title_fullStr A simple model to predict the very high cycle fatigue resistance of steels
title_full_unstemmed A simple model to predict the very high cycle fatigue resistance of steels
title_sort A simple model to predict the very high cycle fatigue resistance of steels
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
VERY-HIGH CYCLE
STEELS
topic FATIGUE
VERY-HIGH CYCLE
STEELS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This work deals with the very high cycle fatigue behavior of high strength steels where fracture origins are mostly at non-metallic inclusions. From the analysis of several features involved in the crack initiation and propagation processes, and since the fatigue resistance usually observed for metals is mainly due to a microstructural threshold for pure fatigue crack propagation, the following expression is proposed to estimate the internal fatigue resistance for a given fatigue life for fractures produced by cracks initiated from an internal inclusion: rInt e ¼ 444 DKth ffiffiffiffiffiffiffi nRi p where rInt e is given in MPa, the inclusion radio Ri is in lm, n is a dimensionless factor and the pure fatigue crack propagation threshold DKth is equal to the lower value given by the following expressions: DKth ¼ 4:103 ðHV þ 120Þ a1=3 DKth1 ¼ 0:0038 ru þ 15:5 where the pure fatigue crack propagation thresholds DKth (function of crack length) and DKth1 (a constant value for a given tensile strength or hardness) are in MPa m1/2, the crack length a in lm, the Vicker harness HV in kgf/mm2 and the ultimate tensile strength ru in MPa. Such estimation becomes very important in the assessment of the fatigue resistance of components subjected to very high cycle fatigue, as this might become a very expensive and time consuming task.
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 This work deals with the very high cycle fatigue behavior of high strength steels where fracture origins are mostly at non-metallic inclusions. From the analysis of several features involved in the crack initiation and propagation processes, and since the fatigue resistance usually observed for metals is mainly due to a microstructural threshold for pure fatigue crack propagation, the following expression is proposed to estimate the internal fatigue resistance for a given fatigue life for fractures produced by cracks initiated from an internal inclusion: rInt e ¼ 444 DKth ffiffiffiffiffiffiffi nRi p where rInt e is given in MPa, the inclusion radio Ri is in lm, n is a dimensionless factor and the pure fatigue crack propagation threshold DKth is equal to the lower value given by the following expressions: DKth ¼ 4:103 ðHV þ 120Þ a1=3 DKth1 ¼ 0:0038 ru þ 15:5 where the pure fatigue crack propagation thresholds DKth (function of crack length) and DKth1 (a constant value for a given tensile strength or hardness) are in MPa m1/2, the crack length a in lm, the Vicker harness HV in kgf/mm2 and the ultimate tensile strength ru in MPa. Such estimation becomes very important in the assessment of the fatigue resistance of components subjected to very high cycle fatigue, as this might become a very expensive and time consuming task.
publishDate 2011
dc.date.none.fl_str_mv 2011-07
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/11336/280036
Chapetti, Mirco Daniel; A simple model to predict the very high cycle fatigue resistance of steels; Elsevier; International Journal of Fatigue; 33; 7; 7-2011; 833-841
0142-1123
CONICET Digital
CONICET
url http://hdl.handle.net/11336/280036
identifier_str_mv Chapetti, Mirco Daniel; A simple model to predict the very high cycle fatigue resistance of steels; Elsevier; International Journal of Fatigue; 33; 7; 7-2011; 833-841
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/url/https://www.sciencedirect.com/science/article/abs/pii/S0142112310003117
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfatigue.2010.12.010
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 13.176822

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