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Abstract
In this paper, the sensitivity of carbon fiber reinforced polyether-ether-ketone friction riveted joints to hydrothermal aging was assessed, addressing the degradation mechanisms and post-aged quasi-static mechanical behavior of the joints. The joints were exposed to 71 °C and 95% relative humidity for 28 days. Despite the oxidation of the metallic nut and washer as well as cavitation and degradation of the composite, a 23% increase of joint mechanical performance was observed after 28 days of exposure. It is believed that the temperature and water uptake drove matrix post-crystallization at the surface of the fibers, which led to local strengthening of the composite in the rivet surrounding and, consequently, improved the joint residual strength.
Original language | English |
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Article number | 112871 |
Number of pages | 11 |
Journal | Composite Structures |
Issue number | 255 |
Early online date | 25 Aug 2020 |
DOIs | |
Publication status | Published - 1 Jan 2021 |
Keywords
- Accelerated aging
- Composite laminate
- Friction riveting
- Hydrothermal effect
- Mechanical fastening
- Thermoplastic composite
ASJC Scopus subject areas
- Ceramics and Composites
- Civil and Structural Engineering
Fields of Expertise
- Advanced Materials Science
Projects
- 1 Finished