Study of damage and repair of blades of a 300 kW wind turbine

The inspection of damages detected in some blades of 300 kW wind turbines revealed that the nature of these damages was probably due to a fatigue mechanism. The causes that had originated the failure (superficial cracks, geometric concentrator, abrupt change of thickness) have been studied, verifyin...

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Detalles Bibliográficos
Autores: Marín Vallejo, Juan Carlos, Barroso Caro, Alberto, París Carballo, Federico, Cañas Delgado, José
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2008
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/179243
Acceso en línea:https://hdl.handle.net/11441/179243
https://doi.org/10.1016/j.energy.2008.02.002
Access Level:acceso abierto
Palabra clave:Wind turbine blade
Composites
Fatigue life
Repair
Finite elements
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spelling Study of damage and repair of blades of a 300 kW wind turbineMarín Vallejo, Juan CarlosBarroso Caro, AlbertoParís Carballo, FedericoCañas Delgado, JoséWind turbine bladeCompositesFatigue lifeRepairFinite elementsThe inspection of damages detected in some blades of 300 kW wind turbines revealed that the nature of these damages was probably due to a fatigue mechanism. The causes that had originated the failure (superficial cracks, geometric concentrator, abrupt change of thickness) have been studied, verifying, by means of the simplified evaluation procedure of fatigue life of the “Germanischer Lloyd” (GL) standard, that these causes can explain the failure detected in the period of time in which it happened. A suitable configuration for the repair of the damaged blades has been studied, by means of a finite element model. The proposed modifications repair the cracks and in addition contribute to relaxing the stress state in the affected zone. The introduction of a triangular reinforcement, which smoothes the re-entrant corner existing in the original design, incorporating a laminate of reinforcement, produces a significant decrease in the stress level in the damaged zone of the blades.ElsevierMecánica de Medios Continuos y Teoría de Estructuras2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/179243https://doi.org/10.1016/j.energy.2008.02.002reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésEnergy, 33 (7), 1068-1083.https://www.sciencedirect.com/science/article/pii/S0360544208000492info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1792432026-06-17T12:51:07Z
dc.title.none.fl_str_mv Study of damage and repair of blades of a 300 kW wind turbine
title Study of damage and repair of blades of a 300 kW wind turbine
spellingShingle Study of damage and repair of blades of a 300 kW wind turbine
Marín Vallejo, Juan Carlos
Wind turbine blade
Composites
Fatigue life
Repair
Finite elements
title_short Study of damage and repair of blades of a 300 kW wind turbine
title_full Study of damage and repair of blades of a 300 kW wind turbine
title_fullStr Study of damage and repair of blades of a 300 kW wind turbine
title_full_unstemmed Study of damage and repair of blades of a 300 kW wind turbine
title_sort Study of damage and repair of blades of a 300 kW wind turbine
dc.creator.none.fl_str_mv Marín Vallejo, Juan Carlos
Barroso Caro, Alberto
París Carballo, Federico
Cañas Delgado, José
author Marín Vallejo, Juan Carlos
author_facet Marín Vallejo, Juan Carlos
Barroso Caro, Alberto
París Carballo, Federico
Cañas Delgado, José
author_role author
author2 Barroso Caro, Alberto
París Carballo, Federico
Cañas Delgado, José
author2_role author
author
author
dc.contributor.none.fl_str_mv Mecánica de Medios Continuos y Teoría de Estructuras
dc.subject.none.fl_str_mv Wind turbine blade
Composites
Fatigue life
Repair
Finite elements
topic Wind turbine blade
Composites
Fatigue life
Repair
Finite elements
description The inspection of damages detected in some blades of 300 kW wind turbines revealed that the nature of these damages was probably due to a fatigue mechanism. The causes that had originated the failure (superficial cracks, geometric concentrator, abrupt change of thickness) have been studied, verifying, by means of the simplified evaluation procedure of fatigue life of the “Germanischer Lloyd” (GL) standard, that these causes can explain the failure detected in the period of time in which it happened. A suitable configuration for the repair of the damaged blades has been studied, by means of a finite element model. The proposed modifications repair the cracks and in addition contribute to relaxing the stress state in the affected zone. The introduction of a triangular reinforcement, which smoothes the re-entrant corner existing in the original design, incorporating a laminate of reinforcement, produces a significant decrease in the stress level in the damaged zone of the blades.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/179243
https://doi.org/10.1016/j.energy.2008.02.002
url https://hdl.handle.net/11441/179243
https://doi.org/10.1016/j.energy.2008.02.002
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Energy, 33 (7), 1068-1083.
https://www.sciencedirect.com/science/article/pii/S0360544208000492
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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