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Experimental study on CFRP-to-steel bonded interfaces

Journal Article


Abstract


  • This paper presents an experimental study on the behaviour of CFRP-to-steel bonded interfaces through

    the testing of a series of single-lap bonded joints. The parameters examined include the material properties

    and the thickness of the adhesive layer and the axial rigidity of the CFRP plate. The test results demonstrate

    that the bond strength of such bonded joints depends strongly on the interfacial fracture energy

    among other factors. Nonlinear adhesives with a lower elastic modulus but a larger strain capacity are

    shown to possess a much higher interfacial fracture energy than linear adhesives with a similar or even

    a higher tensile strength. The variation of the interfacial shear stress distribution in a bonded joint as the

    applied load increases clearly illustrates the existence of an effective bond length. The bond–slip curve is

    shown to have an approximately triangular shape for a linear adhesive but to have an approximately

    trapezoidal shape for a nonlinear adhesive, indicating the necessity of developing different forms of

    bond–slip models for different adhesives.

UOW Authors


  •   Yu, Tao
  •   Fernando, Nangallage Dilum. (external author)
  •   Teng, Jin Guang. (external author)
  •   Zhao, Xiao-lin (external author)

Publication Date


  • 2012

Citation


  • Yu, T., Fernando, D., Teng, J. G. & Zhao, X. L. (2012). Experimental study on CFRP-to-steel bonded interfaces. Composites Part B: Engineering, 43 (5), 2279-2289.

Scopus Eid


  • 2-s2.0-84862809003

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/348

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 2279

End Page


  • 2289

Volume


  • 43

Issue


  • 5

Place Of Publication


  • United Kingdom

Abstract


  • This paper presents an experimental study on the behaviour of CFRP-to-steel bonded interfaces through

    the testing of a series of single-lap bonded joints. The parameters examined include the material properties

    and the thickness of the adhesive layer and the axial rigidity of the CFRP plate. The test results demonstrate

    that the bond strength of such bonded joints depends strongly on the interfacial fracture energy

    among other factors. Nonlinear adhesives with a lower elastic modulus but a larger strain capacity are

    shown to possess a much higher interfacial fracture energy than linear adhesives with a similar or even

    a higher tensile strength. The variation of the interfacial shear stress distribution in a bonded joint as the

    applied load increases clearly illustrates the existence of an effective bond length. The bond–slip curve is

    shown to have an approximately triangular shape for a linear adhesive but to have an approximately

    trapezoidal shape for a nonlinear adhesive, indicating the necessity of developing different forms of

    bond–slip models for different adhesives.

UOW Authors


  •   Yu, Tao
  •   Fernando, Nangallage Dilum. (external author)
  •   Teng, Jin Guang. (external author)
  •   Zhao, Xiao-lin (external author)

Publication Date


  • 2012

Citation


  • Yu, T., Fernando, D., Teng, J. G. & Zhao, X. L. (2012). Experimental study on CFRP-to-steel bonded interfaces. Composites Part B: Engineering, 43 (5), 2279-2289.

Scopus Eid


  • 2-s2.0-84862809003

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/348

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 2279

End Page


  • 2289

Volume


  • 43

Issue


  • 5

Place Of Publication


  • United Kingdom