Experimental and finite element analysis of a double strap joint between steel plates and normal modulus CFRP

Sabrina Fawzia, Riadh Al-Mahaidi, Xiao Ling Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

162 Citations (Scopus)

Abstract

Strengthening of steel structures using externally-bonded carbon fibre reinforced polymers 'CFRP' is a rapidly developing technique. This paper describes the behaviour of axially loaded flat steel plates strengthened using carbon fibre reinforced polymer sheets. Two steel plates were joined together with adhesive and followed by the application of carbon fibre sheet double strap joint with different bond lengths. The behaviour of the specimens was further investigated by using nonlinear finite element analysis to predict the failure modes and load capacity. In this study, bond failure is the dominant failure mode for normal modulus (240 GPa) CFRP bonding which closely matched the results of finite elements. The predicted ultimate loads from the FE analysis are found to be in good agreement with experimental values.

Original languageEnglish
Pages (from-to)156-162
Number of pages7
JournalComposite Structures
Volume75
Issue number1-4
DOIs
Publication statusPublished - Sept 2006
Externally publishedYes

Keywords

  • Bond failure
  • CFRP (carbon fibre reinforced polymer)
  • Double strap joint
  • Finite element analysis
  • Steel plate

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

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