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Finite element analysis of debonding failures in CFRP-strengthened rectangular steel tubes subjected to an end bearing load

Conference Paper


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Abstract


  • The end bearing capacity of a rectangular steel tube can be substantially increased through local

    strengthening by bonding carbon fiber reinforced polymer (CFRP) plates to the webs of the steel

    tube. Existing studies have revealed that failure of such a strengthened tube generally occurs by

    debonding of the CFRP plates from the steel tube and the effectiveness of this strengthening

    method depends significantly on the properties of the adhesive. This paper presents a finite

    element (FE) study on debonding failures in such CFRP-strengthened rectangular steel tubes

    subjected to an end bearing load. In the proposed FE model, a bond-slip model developed by the

    authors’ group for CFRP-to-steel interfaces with linear adhesives together with a mixed-mode

    cohesive law are employed to predict debonding failures. The FE model is shown to closely

    predict the experimental behavior of such CFRP-strengthened tubes.

UOW Authors


  •   Fernando, Nangallage Dilum. (external author)
  •   Yu, Tao
  •   Teng, Jin Guang. (external author)

Publication Date


  • 2012

Citation


  • Fernando, D., Yu, T. & Teng, J. G. (2012). Finite element analysis of debonding failures in CFRP-strengthened rectangular steel tubes subjected to an end bearing load. 6th International Conference on FRP Composites in Civil Engineering (pp. 1-8).

Scopus Eid


  • 2-s2.0-84924368576

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1355&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/350

Has Global Citation Frequency


Start Page


  • 1

End Page


  • 8

Abstract


  • The end bearing capacity of a rectangular steel tube can be substantially increased through local

    strengthening by bonding carbon fiber reinforced polymer (CFRP) plates to the webs of the steel

    tube. Existing studies have revealed that failure of such a strengthened tube generally occurs by

    debonding of the CFRP plates from the steel tube and the effectiveness of this strengthening

    method depends significantly on the properties of the adhesive. This paper presents a finite

    element (FE) study on debonding failures in such CFRP-strengthened rectangular steel tubes

    subjected to an end bearing load. In the proposed FE model, a bond-slip model developed by the

    authors’ group for CFRP-to-steel interfaces with linear adhesives together with a mixed-mode

    cohesive law are employed to predict debonding failures. The FE model is shown to closely

    predict the experimental behavior of such CFRP-strengthened tubes.

UOW Authors


  •   Fernando, Nangallage Dilum. (external author)
  •   Yu, Tao
  •   Teng, Jin Guang. (external author)

Publication Date


  • 2012

Citation


  • Fernando, D., Yu, T. & Teng, J. G. (2012). Finite element analysis of debonding failures in CFRP-strengthened rectangular steel tubes subjected to an end bearing load. 6th International Conference on FRP Composites in Civil Engineering (pp. 1-8).

Scopus Eid


  • 2-s2.0-84924368576

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1355&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/350

Has Global Citation Frequency


Start Page


  • 1

End Page


  • 8