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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Residual modulus degradation model for woven fabric composite determined by impulse excitation technique

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Author(s):
Avila Dias Maciel, Maisa Milanez [1] ; Shiino, Marcos Yutaka [2] ; Cornelis Voorwald, Herman Jacobus [1] ; Hilario Cioffi, Maria Odila [1, 3]
Total Authors: 4
Affiliation:
[1] UNESP Univ Estadual Paulista, Dept Mat & Technol, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, SP - Brazil
[2] UNESP Univ Estadual Paulista, ICT, BR-12247016 Sao Jose Dos Campos, SP - Brazil
[3] UNESP Univ Estadual Paulista, Inst Estudos Avancados Mar IEAMar, BR-12247016 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF FATIGUE; v. 133, APR 2020.
Web of Science Citations: 0
Abstract

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. (AU)

FAPESP's process: 06/02121-6 - Composite processing by RTM
Grantee:Maria Odila Hilário Cioffi
Support Opportunities: Research Grants - Young Investigators Grants