Does carbon nanotube buckypaper affect mode-I and II interlaminar fracture toughness under quasi-static loading?

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorLightweight Structures Laboratory-
Autor(es): dc.contributorStructural Integrity & Composites-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorde Paula Santos, Luis Felipe-
Autor(es): dc.creatorMonticeli, Francisco Maciel-
Autor(es): dc.creatorRibeiro, Bruno-
Autor(es): dc.creatorCosta, Michelle Leali-
Autor(es): dc.creatorAlderliesten, René-
Autor(es): dc.creatorBotelho, Edson Cocchieri-
Data de aceite: dc.date.accessioned2025-08-21T19:51:26Z-
Data de disponibilização: dc.date.available2025-08-21T19:51:26Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.compstruct.2023.117507-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299593-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299593-
Descrição: dc.descriptionCarbon fiber reinforced polymer (CFRP) composites are widely used to produce structural components. However, their low interlaminar strength makes them susceptible to delamination, limiting structural applications. Aiming to solve this problem, this work proposes adding carbon nanotubes buckypaper (BP) into CFR thermoplastic composites as an interlayer to enhance the interlaminar strength through the BP bridging effect. Despite this objective, the carbon nanotube BP changed the delamination behavior in mode-I, creating an easy pathway for crack growth (smooth fracture surface) and reducing the interlaminar strength. An opposite behavior was observed for mode-II, in which BP acted as an obstacle for crack growth through the shear direction due BP bridging effect, which slightly improved interlaminar strength, resulting in a rougher surface. The experiments demonstrated through the energy involved in crack growth, the roughness of the fracture surface, and the amount of fracture mechanisms when BP was incorporated that in mode-I the delamination strength decreased, while it increased under the shear mode. This evidences that the BP bridging effect is influenced by the loading mode. Finally, this work highlights the need to study individual modes I and II in composites with buckypaper as an interlayer, since it influences the interlaminar toughness differently.-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Engineering and Science Department of Materials and Technology, Guaratingueta-
Descrição: dc.descriptionInstitute for Technological Research (IPT) Lightweight Structures Laboratory-
Descrição: dc.descriptionDelft University of Technology (TU-Delft) Aerospace Engineering Structural Integrity & Composites-
Descrição: dc.descriptionFederal University of Sao Paulo (UNIFESP) Institute of Science and Technology-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Engineering and Science Department of Materials and Technology, Guaratingueta-
Idioma: dc.languageen-
Relação: dc.relationComposite Structures-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBuckypapers-
Palavras-chave: dc.subjectFractography-
Palavras-chave: dc.subjectInterlaminar fracture toughness-
Palavras-chave: dc.subjectThermoplastic composites-
Título: dc.titleDoes carbon nanotube buckypaper affect mode-I and II interlaminar fracture toughness under quasi-static loading?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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