Improving performance of composite/metal T-joints by using corrugated aluminum stiffeners

Chiara Morano, Ahmed Wagih, Marco Alfano*, Gilles Lubineau

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The present work addresses the mechanical performance of adhesive bonded composite/metal T-joints comprising a CFRP skin bonded to an aluminum (AA5754) stiffener. Prior research on the subject has shown that the structural performances of T-joints can be enhanced by a variety of methods, including stitching and z-pinning. Here we propose an alternative approach that does not compromise the integrity of the skin, as it only relies on tailoring the architecture of the stiffener. Our results show that using corrugated flanges with a square wave profile, superior performances, i.e., +65% pull-off strength and +416% absorbed energy, can be achieved with respect to the conventional configuration.

Original languageEnglish (US)
Article number116652
JournalComposite Structures
Volume307
DOIs
StatePublished - Mar 1 2023

Bibliographical note

Funding Information:
This research was funded by King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award number OSR-2017-CRG6-3388.01 .

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

  • Adhesive joints
  • Aluminum alloy
  • CFRP
  • T-joint

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

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