Hydrothermal aging of friction riveted thermoplastic composite joints for aircraft applications
| Autor: | Sergio T. Amancio-Filho, N.Z. Borba, J.M.F. dos Santos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
musculoskeletal diseases
Washer Materials science Composite number 02 engineering and technology 021001 nanoscience & nanotechnology Accelerated aging Residual strength 020303 mechanical engineering & transports 0203 mechanical engineering Cavitation Ceramics and Composites Rivet Relative humidity Composite material 0210 nano-technology Joint (geology) ddc:620.11 Civil and Structural Engineering |
| Zdroj: | Borba, N.; dos Santos, J.; Amancio-Filho, S.: Hydrothermal aging of friction riveted thermoplastic composite joints for aircraft applications. In: Composite Structures. Vol. 255 (2021) 112871. (DOI: /10.1016/j.compstruct.2020.112871) |
| ISSN: | 0263-8223 |
| DOI: | 10.1016/j.compstruct.2020.112871) |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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