Reducing repair dimension with variable scarf angles

Detalhes bibliográficos
Autor(a) principal: Pitanga, Midori Y. [UNESP]
Data de Publicação: 2021
Outros Autores: Cioffi, Maria Odila H. [UNESP], Voorwald, Herman J.C. [UNESP], Wang, Chun H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.ijadhadh.2020.102752
http://hdl.handle.net/11449/205376
Resumo: The increase in composites usage for primary and secondary structural components demands advanced repair techniques such as doubler, multi-step, and scarf to restore a damaged structure to its original design capability. Currently, most scarf repairs employ a straight taper at a typical ratio ranging between 1:20 to 1:60 to attain the original design strength. This paper aims to present a new method for reducing the footprint of scarf repairs by optimizing the taper profile through the composite thickness. Experiments are carried out on scarf repairs with piece-wise linear scarf joints, in which the 0° plies are tapered at two different ratios of 1:30 and 1:20, while the 45° and 90° plies are tapered at a ratio of 1:2. Experimental results show that compared to 1:20 straight scarf, the 1:30/1:2 piece-wise linear scarf can achieve 75% of the tensile strength while reducing the repair size by 60%.
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spelling Reducing repair dimension with variable scarf anglesFractographyResin-based compositesScarf jointThe increase in composites usage for primary and secondary structural components demands advanced repair techniques such as doubler, multi-step, and scarf to restore a damaged structure to its original design capability. Currently, most scarf repairs employ a straight taper at a typical ratio ranging between 1:20 to 1:60 to attain the original design strength. This paper aims to present a new method for reducing the footprint of scarf repairs by optimizing the taper profile through the composite thickness. Experiments are carried out on scarf repairs with piece-wise linear scarf joints, in which the 0° plies are tapered at two different ratios of 1:30 and 1:20, while the 45° and 90° plies are tapered at a ratio of 1:2. Experimental results show that compared to 1:20 straight scarf, the 1:30/1:2 piece-wise linear scarf can achieve 75% of the tensile strength while reducing the repair size by 60%.Fatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual Paulista, Av. Ariberto Pereira da Cunha, 333School of Mechanical and Manufacturing Engineering University of New South Wales, Library Road, UNSW, SydneyFatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual Paulista, Av. Ariberto Pereira da Cunha, 333Universidade Estadual Paulista (Unesp)University of New South WalesPitanga, Midori Y. [UNESP]Cioffi, Maria Odila H. [UNESP]Voorwald, Herman J.C. [UNESP]Wang, Chun H.2021-06-25T10:14:21Z2021-06-25T10:14:21Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.ijadhadh.2020.102752International Journal of Adhesion and Adhesives, v. 104.0143-7496http://hdl.handle.net/11449/20537610.1016/j.ijadhadh.2020.1027522-s2.0-85093956858Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Adhesion and Adhesivesinfo:eu-repo/semantics/openAccess2021-10-23T12:39:58Zoai:repositorio.unesp.br:11449/205376Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:50:34.479817Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Reducing repair dimension with variable scarf angles
title Reducing repair dimension with variable scarf angles
spellingShingle Reducing repair dimension with variable scarf angles
Pitanga, Midori Y. [UNESP]
Fractography
Resin-based composites
Scarf joint
title_short Reducing repair dimension with variable scarf angles
title_full Reducing repair dimension with variable scarf angles
title_fullStr Reducing repair dimension with variable scarf angles
title_full_unstemmed Reducing repair dimension with variable scarf angles
title_sort Reducing repair dimension with variable scarf angles
author Pitanga, Midori Y. [UNESP]
author_facet Pitanga, Midori Y. [UNESP]
Cioffi, Maria Odila H. [UNESP]
Voorwald, Herman J.C. [UNESP]
Wang, Chun H.
author_role author
author2 Cioffi, Maria Odila H. [UNESP]
Voorwald, Herman J.C. [UNESP]
Wang, Chun H.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
University of New South Wales
dc.contributor.author.fl_str_mv Pitanga, Midori Y. [UNESP]
Cioffi, Maria Odila H. [UNESP]
Voorwald, Herman J.C. [UNESP]
Wang, Chun H.
dc.subject.por.fl_str_mv Fractography
Resin-based composites
Scarf joint
topic Fractography
Resin-based composites
Scarf joint
description The increase in composites usage for primary and secondary structural components demands advanced repair techniques such as doubler, multi-step, and scarf to restore a damaged structure to its original design capability. Currently, most scarf repairs employ a straight taper at a typical ratio ranging between 1:20 to 1:60 to attain the original design strength. This paper aims to present a new method for reducing the footprint of scarf repairs by optimizing the taper profile through the composite thickness. Experiments are carried out on scarf repairs with piece-wise linear scarf joints, in which the 0° plies are tapered at two different ratios of 1:30 and 1:20, while the 45° and 90° plies are tapered at a ratio of 1:2. Experimental results show that compared to 1:20 straight scarf, the 1:30/1:2 piece-wise linear scarf can achieve 75% of the tensile strength while reducing the repair size by 60%.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:14:21Z
2021-06-25T10:14:21Z
2021-01-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.ijadhadh.2020.102752
International Journal of Adhesion and Adhesives, v. 104.
0143-7496
http://hdl.handle.net/11449/205376
10.1016/j.ijadhadh.2020.102752
2-s2.0-85093956858
url http://dx.doi.org/10.1016/j.ijadhadh.2020.102752
http://hdl.handle.net/11449/205376
identifier_str_mv International Journal of Adhesion and Adhesives, v. 104.
0143-7496
10.1016/j.ijadhadh.2020.102752
2-s2.0-85093956858
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv International Journal of Adhesion and Adhesives
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128424260141056

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