Investigating the influence of steel surface roughness and multiple CFRP layers on the bonding behaviour of a single-strap joint

Research output: Contribution to journalArticle

Abstract

Three series of steel-plate single-strap joints bonded by Carbon-Fibre Reinforced Polymer (CFRP) sheets, which are used with an adhesive material, are investigated in this study. Experimental and finite element (FE) analyses using ABAQUS software are employed for this purpose. The main objective of this study is to provide further understanding of the bonding mechanism of strengthened single-strap joints under a pure-tension load. The experimental tests specifically investigated the effects of using multiple CFRP layers with normal/high steel surface roughness on the bonding failure mode, bond-load capacity, and effective bond length. Furthermore, the FE analysis was used to establish the shear stress-slip relationships of the suggested specimens. The results showed that the bond capacity (ultimate bond load) of single-strap joint did not increased much when the CFRP bonding length pass the effective bond length (limit). The bonding capacity (ultimate bond load) of single-strap joint increased only of about 14% when increase d the CFRP layers from two to four. Moreover, the behaviour of the shear stress-slip relationship was not significantly affected by increasing the number of CFRP layers.

Original languageEnglish
Pages (from-to)115-122
Number of pages8
JournalJurnal Teknologi
Volume80
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

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Carbon fibers
Surface roughness
Steel
Polymers
Bond length
Shear stress
ABAQUS
Failure modes
Adhesives
Finite element method

Keywords

  • CFRP
  • Debonding failure
  • Effective bond length
  • FE analysis
  • Single strap joint

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Investigating the influence of steel surface roughness and multiple CFRP layers on the bonding behaviour of a single-strap joint. / Al Zand, Ahmed W.; Wan Badaruzzaman, Wan Hamidon.

In: Jurnal Teknologi, Vol. 80, No. 1, 01.01.2018, p. 115-122.

Research output: Contribution to journalArticle

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