Direct-Friction Riveting of polymer composite laminates for aircraft applications

N. Z. Borba, L. Blaga, J. F. dos Santos, S. T. Amancio-Filho*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Friction Riveting is an alternative joining technology to the conventional mechanical fastening suitable for woven-reinforced polymer composites. In this paper, the feasibility of Direct-Friction Riveting is demonstrated for Ti6Al4V rivet and carbon-fiber reinforced polyether-ether-ketone laminate single lap joints. Due to high shear rates, elevated process temperatures (500–900 °C) and fast cooling rates (38 ± 2 °C/s) experienced by the rivet tip, α′-martensitic structures were identified in the rivet anchoring zone along with fiber and polymer entrapment at the rivet-composite interface. An average ultimate lap shear force of 7.4 ± 0.6 kN similar to conventional lock-bolted single lap joints was achieved. These results indicate that Direct-Friction Riveting is a competitive method with potential for improvement and further application in aircraft structures.

Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalMaterials Letters
Volume215
DOIs
Publication statusPublished - 15 Mar 2018
Externally publishedYes

Keywords

  • Direct-Friction Riveting
  • Ti6Al4V
  • Woven carbon-fiber reinforced composites

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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