Estimation of notch sensitivity and size effect on fatigue resistance

Autores
Chapetti, Mirco Daniel; Guerrero, Andrés O.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper addresses the problem of high cycle fatigue resistance associated to notches and the role of short crack propagation in the fatigue notch sensitivity quantified by the notch factor. An integrated fracture mechanics approach is proposed to estimate the fatigue notch sensitivity, by including the effect of both blunt and sharp notches. Whether fatigue strength at a given life is controlled by crack initiation (very blunt notches, ), by microstructuraly short cracks (blunt notches,), or by mechanically short crack propagation (sharp notches, ), depends on the stress concentration , the notch length D and the material threshold to crack initiation , to short crack propagation and to long crack propagation. The approach includes the prediction of the fatigue crack propagation threshold for short cracks, previously developed to analyze the short crack behavior in metallic materials with or without blunt notches, and is integrated adding the influence of sharp notches and accounting for the controlling parameters. It estimates the fatigue resistance of the component by comparing the threshold for fatigue crack propagation as a function of crack length, with the applied ÄK for the given configuration. Estimations for results reported in published bibliography are presented. The proposed fracture mechanics approach allows accounting for the effects of notch acuity, notch size and intrinsic material fatigue properties on fatigue notch sensitivity. It opens the door to a new simple method for predicting fatigue notch sensitivity and fatigue strength of components with geometric concentrators by using parameters that can be easily measured or estimated, without the necessity of any fitting parameter.
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
Fil: Guerrero, Andrés O.. 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
BLUNT NOTCHES
ESTIMATION
FATIGUE NOTCH SENSITIVITY
FATIGUE RESISTANCE
SHARP NOTCHES
SIZE EFFECT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/3072
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/3072
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Estimation of notch sensitivity and size effect on fatigue resistanceChapetti, Mirco DanielGuerrero, Andrés O.BLUNT NOTCHESESTIMATIONFATIGUE NOTCH SENSITIVITYFATIGUE RESISTANCESHARP NOTCHESSIZE EFFECThttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2This paper addresses the problem of high cycle fatigue resistance associated to notches and the role of short crack propagation in the fatigue notch sensitivity quantified by the notch factor. An integrated fracture mechanics approach is proposed to estimate the fatigue notch sensitivity, by including the effect of both blunt and sharp notches. Whether fatigue strength at a given life is controlled by crack initiation (very blunt notches, ), by microstructuraly short cracks (blunt notches,), or by mechanically short crack propagation (sharp notches, ), depends on the stress concentration , the notch length D and the material threshold to crack initiation , to short crack propagation and to long crack propagation. The approach includes the prediction of the fatigue crack propagation threshold for short cracks, previously developed to analyze the short crack behavior in metallic materials with or without blunt notches, and is integrated adding the influence of sharp notches and accounting for the controlling parameters. It estimates the fatigue resistance of the component by comparing the threshold for fatigue crack propagation as a function of crack length, with the applied ÄK for the given configuration. Estimations for results reported in published bibliography are presented. The proposed fracture mechanics approach allows accounting for the effects of notch acuity, notch size and intrinsic material fatigue properties on fatigue notch sensitivity. It opens the door to a new simple method for predicting fatigue notch sensitivity and fatigue strength of components with geometric concentrators by using parameters that can be easily measured or estimated, without the necessity of any fitting parameter.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; ArgentinaFil: Guerrero, Andrés O.. 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; ArgentinaElsevier2013-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/3072Chapetti, Mirco Daniel; Guerrero, Andrés O.; Estimation of notch sensitivity and size effect on fatigue resistance; Elsevier; Procedia Engineering; 66; 12-2013; 323-3331877-7058eng5th Fatigue Design Conference, Fatigue Design 2013info:eu-repo/semantics/altIdentifier/doi/10.1016/j.proeng.2013.12.087info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1877705813019206info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:03:28Zoai:ri.conicet.gov.ar:11336/3072instacron: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:34982025-09-17 11:03:28.271CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Estimation of notch sensitivity and size effect on fatigue resistance
title Estimation of notch sensitivity and size effect on fatigue resistance
spellingShingle Estimation of notch sensitivity and size effect on fatigue resistance
Chapetti, Mirco Daniel
BLUNT NOTCHES
ESTIMATION
FATIGUE NOTCH SENSITIVITY
FATIGUE RESISTANCE
SHARP NOTCHES
SIZE EFFECT
title_short Estimation of notch sensitivity and size effect on fatigue resistance
title_full Estimation of notch sensitivity and size effect on fatigue resistance
title_fullStr Estimation of notch sensitivity and size effect on fatigue resistance
title_full_unstemmed Estimation of notch sensitivity and size effect on fatigue resistance
title_sort Estimation of notch sensitivity and size effect on fatigue resistance
dc.creator.none.fl_str_mv Chapetti, Mirco Daniel
Guerrero, Andrés O.
author Chapetti, Mirco Daniel
author_facet Chapetti, Mirco Daniel
Guerrero, Andrés O.
author_role author
author2 Guerrero, Andrés O.
author2_role author
dc.subject.none.fl_str_mv BLUNT NOTCHES
ESTIMATION
FATIGUE NOTCH SENSITIVITY
FATIGUE RESISTANCE
SHARP NOTCHES
SIZE EFFECT
topic BLUNT NOTCHES
ESTIMATION
FATIGUE NOTCH SENSITIVITY
FATIGUE RESISTANCE
SHARP NOTCHES
SIZE EFFECT
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 paper addresses the problem of high cycle fatigue resistance associated to notches and the role of short crack propagation in the fatigue notch sensitivity quantified by the notch factor. An integrated fracture mechanics approach is proposed to estimate the fatigue notch sensitivity, by including the effect of both blunt and sharp notches. Whether fatigue strength at a given life is controlled by crack initiation (very blunt notches, ), by microstructuraly short cracks (blunt notches,), or by mechanically short crack propagation (sharp notches, ), depends on the stress concentration , the notch length D and the material threshold to crack initiation , to short crack propagation and to long crack propagation. The approach includes the prediction of the fatigue crack propagation threshold for short cracks, previously developed to analyze the short crack behavior in metallic materials with or without blunt notches, and is integrated adding the influence of sharp notches and accounting for the controlling parameters. It estimates the fatigue resistance of the component by comparing the threshold for fatigue crack propagation as a function of crack length, with the applied ÄK for the given configuration. Estimations for results reported in published bibliography are presented. The proposed fracture mechanics approach allows accounting for the effects of notch acuity, notch size and intrinsic material fatigue properties on fatigue notch sensitivity. It opens the door to a new simple method for predicting fatigue notch sensitivity and fatigue strength of components with geometric concentrators by using parameters that can be easily measured or estimated, without the necessity of any fitting parameter.
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
Fil: Guerrero, Andrés O.. 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 paper addresses the problem of high cycle fatigue resistance associated to notches and the role of short crack propagation in the fatigue notch sensitivity quantified by the notch factor. An integrated fracture mechanics approach is proposed to estimate the fatigue notch sensitivity, by including the effect of both blunt and sharp notches. Whether fatigue strength at a given life is controlled by crack initiation (very blunt notches, ), by microstructuraly short cracks (blunt notches,), or by mechanically short crack propagation (sharp notches, ), depends on the stress concentration , the notch length D and the material threshold to crack initiation , to short crack propagation and to long crack propagation. The approach includes the prediction of the fatigue crack propagation threshold for short cracks, previously developed to analyze the short crack behavior in metallic materials with or without blunt notches, and is integrated adding the influence of sharp notches and accounting for the controlling parameters. It estimates the fatigue resistance of the component by comparing the threshold for fatigue crack propagation as a function of crack length, with the applied ÄK for the given configuration. Estimations for results reported in published bibliography are presented. The proposed fracture mechanics approach allows accounting for the effects of notch acuity, notch size and intrinsic material fatigue properties on fatigue notch sensitivity. It opens the door to a new simple method for predicting fatigue notch sensitivity and fatigue strength of components with geometric concentrators by using parameters that can be easily measured or estimated, without the necessity of any fitting parameter.
publishDate 2013
dc.date.none.fl_str_mv 2013-12
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/11336/3072
Chapetti, Mirco Daniel; Guerrero, Andrés O.; Estimation of notch sensitivity and size effect on fatigue resistance; Elsevier; Procedia Engineering; 66; 12-2013; 323-333
1877-7058
url http://hdl.handle.net/11336/3072
identifier_str_mv Chapetti, Mirco Daniel; Guerrero, Andrés O.; Estimation of notch sensitivity and size effect on fatigue resistance; Elsevier; Procedia Engineering; 66; 12-2013; 323-333
1877-7058
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 5th Fatigue Design Conference, Fatigue Design 2013
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.proeng.2013.12.087
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1877705813019206
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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 13.000565

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