Fatigue behaviour of CFRP strengthened steel plates with different degrees of damage

Q. Q. Yu, T. Chen, X. L. Gu, X. L. Zhao, Z. G. Xiao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

120 Citations (Scopus)


An experimental and analytical study was conducted to further investigate the effectiveness of the carbon fibre reinforced polymer (CFRP) plates in extending fatigue life of steel structures. Different lengths of artificial cracks were introduced to represent different degrees of fatigue damage. The experimental results demonstrated that the CFRP patches could effectively slow down the crack growth and prolong the fatigue life. A theoretical model was developed to predict the fatigue life of tested specimens. Thereafter, a parametric study was carried out to investigate the fatigue behaviour of steel plates with a wider range of damage degrees. This study extends the understanding of CFRP repair at different stages of crack propagation and provides some useful suggestions for the strengthening method.

Original languageEnglish
Pages (from-to)10-17
Number of pages8
JournalThin-Walled Structures
Publication statusPublished - 2013
Externally publishedYes


  • Carbon fibre reinforced polymer plate
  • Fatigue damage
  • Fatigue test
  • Fracture mechanics
  • Steel plate

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering


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