Fatigue strength assessment of butt-welded joints with undercuts

Autores
Steimbreger, Ceferino; Chapetti, Mirco Daniel
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Undercuts are geometrical discontinuities that affect fatigue strength of welded joints, since they constitute a notch at the weld toe. Detrimental effects of these flaws are governed by stress concentration, which is characterised by notch depth and root radius. Variety of undercut shapes and extensions demands accurate prediction of fatigue lifetime for each particular case, or the most conservative situation. Furthermore, lack of agreement in codes and standards about undercut tolerances evinces the need of a theory-based methodology, which can provide understandings of the involved damaging process. From this standpoint, numerical simulations of transversely stressed butt joints were performed. Relationship between undercut geometry and fatigue strength of weldments was studied by means of a fracture mechanics approach. Recommendations for the acceptance of weld undercuts and comparison with current standard tolerances were discussed.
Fil: Steimbreger, Ceferino. 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: 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
Fracture Mechanic Approach
Notches
Undercut
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:11336/45721
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Fatigue strength assessment of butt-welded joints with undercutsSteimbreger, CeferinoChapetti, Mirco DanielFatigue LimitFracture Mechanic ApproachNotchesUndercuthttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Undercuts are geometrical discontinuities that affect fatigue strength of welded joints, since they constitute a notch at the weld toe. Detrimental effects of these flaws are governed by stress concentration, which is characterised by notch depth and root radius. Variety of undercut shapes and extensions demands accurate prediction of fatigue lifetime for each particular case, or the most conservative situation. Furthermore, lack of agreement in codes and standards about undercut tolerances evinces the need of a theory-based methodology, which can provide understandings of the involved damaging process. From this standpoint, numerical simulations of transversely stressed butt joints were performed. Relationship between undercut geometry and fatigue strength of weldments was studied by means of a fracture mechanics approach. Recommendations for the acceptance of weld undercuts and comparison with current standard tolerances were discussed.Fil: Steimbreger, Ceferino. 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: 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; ArgentinaElsevier2017-09-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/45721Steimbreger, Ceferino; Chapetti, Mirco Daniel; Fatigue strength assessment of butt-welded joints with undercuts; Elsevier; International Journal of Fatigue; 105; 18-9-2017; 296-3040142-1123CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfatigue.2017.09.011info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0142112317303766info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:27Zoai:ri.conicet.gov.ar:11336/45721instacron: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 09:38:27.289CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fatigue strength assessment of butt-welded joints with undercuts
title Fatigue strength assessment of butt-welded joints with undercuts
spellingShingle Fatigue strength assessment of butt-welded joints with undercuts
Steimbreger, Ceferino
Fatigue Limit
Fracture Mechanic Approach
Notches
Undercut
title_short Fatigue strength assessment of butt-welded joints with undercuts
title_full Fatigue strength assessment of butt-welded joints with undercuts
title_fullStr Fatigue strength assessment of butt-welded joints with undercuts
title_full_unstemmed Fatigue strength assessment of butt-welded joints with undercuts
title_sort Fatigue strength assessment of butt-welded joints with undercuts
dc.creator.none.fl_str_mv Steimbreger, Ceferino
Chapetti, Mirco Daniel
author Steimbreger, Ceferino
author_facet Steimbreger, Ceferino
Chapetti, Mirco Daniel
author_role author
author2 Chapetti, Mirco Daniel
author2_role author
dc.subject.none.fl_str_mv Fatigue Limit
Fracture Mechanic Approach
Notches
Undercut
topic Fatigue Limit
Fracture Mechanic Approach
Notches
Undercut
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Undercuts are geometrical discontinuities that affect fatigue strength of welded joints, since they constitute a notch at the weld toe. Detrimental effects of these flaws are governed by stress concentration, which is characterised by notch depth and root radius. Variety of undercut shapes and extensions demands accurate prediction of fatigue lifetime for each particular case, or the most conservative situation. Furthermore, lack of agreement in codes and standards about undercut tolerances evinces the need of a theory-based methodology, which can provide understandings of the involved damaging process. From this standpoint, numerical simulations of transversely stressed butt joints were performed. Relationship between undercut geometry and fatigue strength of weldments was studied by means of a fracture mechanics approach. Recommendations for the acceptance of weld undercuts and comparison with current standard tolerances were discussed.
Fil: Steimbreger, Ceferino. 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: 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 Undercuts are geometrical discontinuities that affect fatigue strength of welded joints, since they constitute a notch at the weld toe. Detrimental effects of these flaws are governed by stress concentration, which is characterised by notch depth and root radius. Variety of undercut shapes and extensions demands accurate prediction of fatigue lifetime for each particular case, or the most conservative situation. Furthermore, lack of agreement in codes and standards about undercut tolerances evinces the need of a theory-based methodology, which can provide understandings of the involved damaging process. From this standpoint, numerical simulations of transversely stressed butt joints were performed. Relationship between undercut geometry and fatigue strength of weldments was studied by means of a fracture mechanics approach. Recommendations for the acceptance of weld undercuts and comparison with current standard tolerances were discussed.
publishDate 2017
dc.date.none.fl_str_mv 2017-09-18
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/11336/45721
Steimbreger, Ceferino; Chapetti, Mirco Daniel; Fatigue strength assessment of butt-welded joints with undercuts; Elsevier; International Journal of Fatigue; 105; 18-9-2017; 296-304
0142-1123
CONICET Digital
CONICET
url http://hdl.handle.net/11336/45721
identifier_str_mv Steimbreger, Ceferino; Chapetti, Mirco Daniel; Fatigue strength assessment of butt-welded joints with undercuts; Elsevier; International Journal of Fatigue; 105; 18-9-2017; 296-304
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/j.ijfatigue.2017.09.011
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0142112317303766
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 13.070432

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