Author(s): Maciel, Maísa Milanez Ávila Dias [UNESP] ; Shiino, Marcos Yutaka [UNESP] ; Voorwald, Herman Jacobus Cornelis [UNESP] ; Cioffi, Maria Odila Hilário [UNESP]
Date: 2020
Persistent ID: http://hdl.handle.net/11449/199870
Origin: Oasisbr
Subject(s): 5HS woven; Carbon fiber; Crack propagation; Delamination; Epoxy; 5HS woven; 5HS woven; Carbon fiber; Carbon fiber; Crack propagation; Crack propagation; Delamination; Delamination; Epoxy; Epoxy
Made available in DSpace on 2020-12-12T01:51:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-04-01
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Structural components in the aircraft industries often require geometries that induce stress concentration effects, intensifying fatigue phenomena. When combined with a lack of structural monitoring it may limit composite applications. This research focuses on stiffness reduction of a notched carbon fiber laminate subjected to tension-tension fatigue load. The stiffness reduction was monitored during the cyclic tests by the use of the impulse excitation technique. Three major degradation stages were observed, the initial stage showed a high degradation rate followed by constant modulus degradation. The last stage was related to the presence of extensive delamination occurring outside of the notch area.
Fatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual Paulista, 12516-410 Guaratinguetá
ICT UNESP - Univ. Estadual Paulista
Instituto de Estudos Avançados do Mar (IEAMar) UNESP - Univ. Estadual Paulista
Fatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual Paulista, 12516-410 Guaratinguetá
ICT UNESP - Univ. Estadual Paulista
Instituto de Estudos Avançados do Mar (IEAMar) UNESP - Univ. Estadual Paulista
CAPES: 001
CNPq: 130696/2017-0
FAPESP: 2006/02121-6
