Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista soldagem & inspeção (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242017000200194 |
Resumo: | Abstract The stress concentration factors (SCFs) in welded connections usually occur at zones with high stress levels. Stress concentrations reduce the fatigue behavior of welded connections in offshore structures and cracking can develop. By using the grinding technique, cracking can be eliminated. Stress concentration factors are defined as a ratio of maximum stress at the intersection to nominal stress on the brace. Defining the stress concentration factor is an important stage in the fatigue behavior of welded connections. Several approaches have evolved for designing structures with the classical S-N approach for estimating total life. This work correlates to the stress concentration factors of T-welded connections and the fatigue behavior. Stress concentration factors were computed with the finite element employing 3D T-welded connections with intact and grinding depth conditions. Then, T-welded connections were constructed with A36 plate steel and welded with E6013 electrodes to obtain the stress-life (S-N) approach. The methodology from previous works was used to compute the SCF and fabricate the T-welded connections. The results indicated that the grinding process could restore the fatigue life of the T-welded connections for SCFs values in the range of 1.29. This value can be considered to be a low SCF value in T-welded connection. However, for higher SCF values, the fatigue life decreased, compromising and reducing the structural integrity of the T-welded connections. |
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Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue BehaviorStress concentrations factorsFinite element methodT-welded connectionsU-shape grindingS-N curveAbstract The stress concentration factors (SCFs) in welded connections usually occur at zones with high stress levels. Stress concentrations reduce the fatigue behavior of welded connections in offshore structures and cracking can develop. By using the grinding technique, cracking can be eliminated. Stress concentration factors are defined as a ratio of maximum stress at the intersection to nominal stress on the brace. Defining the stress concentration factor is an important stage in the fatigue behavior of welded connections. Several approaches have evolved for designing structures with the classical S-N approach for estimating total life. This work correlates to the stress concentration factors of T-welded connections and the fatigue behavior. Stress concentration factors were computed with the finite element employing 3D T-welded connections with intact and grinding depth conditions. Then, T-welded connections were constructed with A36 plate steel and welded with E6013 electrodes to obtain the stress-life (S-N) approach. The methodology from previous works was used to compute the SCF and fabricate the T-welded connections. The results indicated that the grinding process could restore the fatigue life of the T-welded connections for SCFs values in the range of 1.29. This value can be considered to be a low SCF value in T-welded connection. However, for higher SCF values, the fatigue life decreased, compromising and reducing the structural integrity of the T-welded connections.Associação Brasileira de Soldagem2017-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242017000200194Soldagem & Inspeção v.22 n.2 2017reponame:Revista soldagem & inspeção (Online)instname:Associação Brasileira de Soldagem (ABS)instacron:ABS10.1590/0104-9224/si2202.08info:eu-repo/semantics/openAccessMéndez,Gerardo TeránCuamatzi-Meléndez,RubénHernández,Apolinar AlbiterCapula-Colindres,Selene I.Angeles-Herrera,DanielVelázquez,Julio CesarVazquez-Hernández,Omareng2017-12-01T00:00:00Zoai:scielo:S0104-92242017000200194Revistahttp://abs-soldagem.org.br/s&i/https://old.scielo.br/oai/scielo-oai.php||revista-si@abs-soldagem.org.br0104-92241980-6973opendoar:2017-12-01T00:00Revista soldagem & inspeção (Online) - Associação Brasileira de Soldagem (ABS)false |
dc.title.none.fl_str_mv |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
title |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
spellingShingle |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior Méndez,Gerardo Terán Stress concentrations factors Finite element method T-welded connections U-shape grinding S-N curve |
title_short |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
title_full |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
title_fullStr |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
title_full_unstemmed |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
title_sort |
Correlation of Stress Concentration Factors for T-Welded Connections – Finite Element Simulations and Fatigue Behavior |
author |
Méndez,Gerardo Terán |
author_facet |
Méndez,Gerardo Terán Cuamatzi-Meléndez,Rubén Hernández,Apolinar Albiter Capula-Colindres,Selene I. Angeles-Herrera,Daniel Velázquez,Julio Cesar Vazquez-Hernández,Omar |
author_role |
author |
author2 |
Cuamatzi-Meléndez,Rubén Hernández,Apolinar Albiter Capula-Colindres,Selene I. Angeles-Herrera,Daniel Velázquez,Julio Cesar Vazquez-Hernández,Omar |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Méndez,Gerardo Terán Cuamatzi-Meléndez,Rubén Hernández,Apolinar Albiter Capula-Colindres,Selene I. Angeles-Herrera,Daniel Velázquez,Julio Cesar Vazquez-Hernández,Omar |
dc.subject.por.fl_str_mv |
Stress concentrations factors Finite element method T-welded connections U-shape grinding S-N curve |
topic |
Stress concentrations factors Finite element method T-welded connections U-shape grinding S-N curve |
description |
Abstract The stress concentration factors (SCFs) in welded connections usually occur at zones with high stress levels. Stress concentrations reduce the fatigue behavior of welded connections in offshore structures and cracking can develop. By using the grinding technique, cracking can be eliminated. Stress concentration factors are defined as a ratio of maximum stress at the intersection to nominal stress on the brace. Defining the stress concentration factor is an important stage in the fatigue behavior of welded connections. Several approaches have evolved for designing structures with the classical S-N approach for estimating total life. This work correlates to the stress concentration factors of T-welded connections and the fatigue behavior. Stress concentration factors were computed with the finite element employing 3D T-welded connections with intact and grinding depth conditions. Then, T-welded connections were constructed with A36 plate steel and welded with E6013 electrodes to obtain the stress-life (S-N) approach. The methodology from previous works was used to compute the SCF and fabricate the T-welded connections. The results indicated that the grinding process could restore the fatigue life of the T-welded connections for SCFs values in the range of 1.29. This value can be considered to be a low SCF value in T-welded connection. However, for higher SCF values, the fatigue life decreased, compromising and reducing the structural integrity of the T-welded connections. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242017000200194 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242017000200194 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-9224/si2202.08 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Soldagem |
publisher.none.fl_str_mv |
Associação Brasileira de Soldagem |
dc.source.none.fl_str_mv |
Soldagem & Inspeção v.22 n.2 2017 reponame:Revista soldagem & inspeção (Online) instname:Associação Brasileira de Soldagem (ABS) instacron:ABS |
instname_str |
Associação Brasileira de Soldagem (ABS) |
instacron_str |
ABS |
institution |
ABS |
reponame_str |
Revista soldagem & inspeção (Online) |
collection |
Revista soldagem & inspeção (Online) |
repository.name.fl_str_mv |
Revista soldagem & inspeção (Online) - Associação Brasileira de Soldagem (ABS) |
repository.mail.fl_str_mv |
||revista-si@abs-soldagem.org.br |
_version_ |
1754213003896553472 |