Effect of fatigue loading on the bond behaviour between UHM CFRP plates and steel plates

Chao Wu, Xiao Ling Zhao, Wing Kong Chiu, Riadh Al-Mahaidi, Wen Hui Duan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

74 Citations (Scopus)

Abstract

Extensive research has been conducted on static bond behaviour between CFRP and steel. However, very limited research is available on the effect of fatigue loading on the bond behaviour between CFRP and steel. This paper attempts to fill the knowledge gap in this area. A series of static and fatigue tests on UHM (ultra high modulus) CFRP plate and steel plate double strap joints were conducted. Five specimens were tensioned to failure under static loading as control specimens. The other 12 specimens were tested under fatigue loading with load ratios ranging from 0.2 to 0.6 (defined as the ratio of the maximum fatigue load to the average static bond strength of control specimens). After going through pre-set number of fatigue cycles, the specimens were tensioned to failure under static loading. The failure modes, residual bond strength and residual bond stiffness of such specimens were compared with those of control specimens, to facilitate the investigation of the effect of fatigue loading on the bond behaviour. Microscopic investigation was also performed to reveal the underlying failure mechanism.

Original languageEnglish
Pages (from-to)344-353
Number of pages10
JournalComposites Part B: Engineering
Volume50
DOIs
Publication statusPublished - Jul 2013
Externally publishedYes

Keywords

  • A. Carbon fibre
  • A. Laminates
  • B. Debonding
  • B. Fatigue CFRP-to-steel bond

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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