Fatigue Performance of Metal–Composite Friction Spot Joints

Seyed M. Goushegir, Jorge F. dos Santos, S. T. Amancio-Filho*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Friction spot joining is an alternative technique for joining metals with polymers and composites. This study investigated the fatigue performance of aluminum alloy 2024/carbon-fiber-reinforced poly(phenylene sulfide) joints that were produced with friction spot joining. The surface of the aluminum was pre-treated using various surface treatment methods. The joined specimens were tested under dynamic loading using a load ratio of R = 0.1 and a frequency of 5 Hz. The tests were performed at different percentages of the lap shear strength of the joint. Three models—exponential, power law, and wear-out—were used to statistically analyze the fatigue life of the joints and to draw the stress–life (S–N) curves. The joints showed an infinite life of 25–35% of their quasi-static strength at 106 cycles. The joints surpassing 106 cycles were subsequently tested under quasi-static loading, showing no considerable reduction compared to their initial lap shear strength
Original languageEnglish
Article number4516
Number of pages16
Issue number16
Publication statusPublished - Aug 2021


  • Aluminum and alloys
  • Composite materials
  • Fatigue life
  • Friction spot joining
  • Mechanical properties
  • Surface preparation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

Fields of Expertise

  • Advanced Materials Science

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