Friction Spot Joining of aluminum alloy 2024-T3 and carbon-fiber-reinforced poly(phenylene sulfide) laminate with additional PPS film interlayer: Microstructure, mechanical strength and failure mechanisms

Natália M. André, Seyed M. Goushegir, Jorge F. Dos Santos, Leonardo B. Canto, Sergio T. Amancio-Filho

Research output: Contribution to journalArticleResearchpeer-review


Friction Spot Joining is an innovative friction-based joining technique for metal-polymer hybrid structures. In this work, aluminum alloy 2024-T3 and CF-PPS friction-spot joints were produced with additional PPS film interlayer. The joints were investigated in terms of the microstructure, mechanical performance under quasi-static loading and failure mechanisms. Macro- and micro-mechanical interlocking as well as adhesion forces were identified to dictate bonding mechanisms in the FSp joint with film interlayer. The ultimate lap shear force of the joints (2700 ± 115 N up to 3070 ± 165 N) were 20%-55% higher than the corresponding joints without interlayer, due to the larger bonding area, better load distribution and improved micro-mechanical interlocking. The failure analysis of the joints revealed a mixture of adhesive-cohesive failure, whereas cohesive failure was dominant.

Original languageEnglish
Pages (from-to)197-208
Number of pages12
JournalComposites / B
Publication statusPublished - 1 Jun 2016
Externally publishedYes



  • A. Polymer-matrix composites (PMCs)
  • B. Mechanical properties
  • B. Microstructure
  • E. Joints/joining
  • Friction Spot Joining

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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