Reducing repair dimension with variable scarf angles

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dc.contributor.authorPitanga, Midori Y. [UNESP]
dc.contributor.authorCioffi, Maria Odila H. [UNESP]
dc.contributor.authorVoorwald, Herman J.C. [UNESP]
dc.contributor.authorWang, Chun H.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of New South Wales
dc.date.accessioned2021-06-25T10:14:21Z
dc.date.available2021-06-25T10:14:21Z
dc.date.issued2021-01-01
dc.description.abstractThe 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%.en
dc.description.affiliationFatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual Paulista, Av. Ariberto Pereira da Cunha, 333
dc.description.affiliationSchool of Mechanical and Manufacturing Engineering University of New South Wales, Library Road, UNSW, Sydney
dc.description.affiliationUnespFatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual Paulista, Av. Ariberto Pereira da Cunha, 333
dc.identifierhttp://dx.doi.org/10.1016/j.ijadhadh.2020.102752
dc.identifier.citationInternational Journal of Adhesion and Adhesives, v. 104.
dc.identifier.doi10.1016/j.ijadhadh.2020.102752
dc.identifier.issn0143-7496
dc.identifier.scopus2-s2.0-85093956858
dc.identifier.urihttp://hdl.handle.net/11449/205376
dc.language.isoeng
dc.relation.ispartofInternational Journal of Adhesion and Adhesives
dc.sourceScopus
dc.subjectFractography
dc.subjectResin-based composites
dc.subjectScarf joint
dc.titleReducing repair dimension with variable scarf anglesen
dc.typeArtigo

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