Hydrothermal aging of friction riveted thermoplastic composite joints for aircraft applications

Natascha Zocoller Borba, Jorge F. dos Santos, S. T. Amancio-Filho*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Article number112871
Number of pages11
JournalComposite Structures
Issue number255
Early online date25 Aug 2020
Publication statusPublished - 1 Jan 2021


  • 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

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