Crack propagation prediction of CFRP retrofitted steel plates with different degrees of damage using BEM

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)

Abstract

Although carbon fibre reinforced polymer (CFRP) materials have proven effective in strengthening steel structures especially when used to improve fatigue behaviour, further study is required to investigate their effectiveness when applied at different stages of crack propagation in steel elements. This paper presents a numerical study on CFRP retrofitted steel plates with different degrees of damage using the boundary element method (BEM). The numerical results compared well with the experimental data, which demonstrated that the BEM is reliable for crack propagation analysis of CFRP laminate retrofitted steel plates. Finally, a parametric analysis was conducted to investigate the influence of bond length, bond width, CFRP stiffness and adhesive shear modulus on stress intensity factor (SIF) values.

Original languageEnglish
Pages (from-to)145-158
Number of pages14
JournalThin-Walled Structures
Volume82
DOIs
Publication statusPublished - Sep 2014
Externally publishedYes

Keywords

  • Boundary element method
  • CFRP laminate
  • Degree of damage
  • Fatigue
  • Steel plate
  • Stress intensity factor

ASJC Scopus subject areas

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

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