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Proceedings Paper

Experimental study on fatigue crack propagation rate of RC beam strengthened with carbon fiber laminate
Author(s): Peiyan Huang; Guangwan Liu; Xinyan Guo; Man Huang
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Paper Abstract

The experimental research on fatigue crack propagation rate of reinforced concrete (RC) beams strengthened with carbon fiber laminate (CFL) is carried out by MTS system in this paper. The experimental results show that, the main crack propagation on strengthened beam can be summarized into three phases: 1) fast propagation phase; 2) steady propagation and rest phase; 3) unsteady propagation phase. The phase 2-i.e. steady propagation and rest stage makes up about 95% of fatigue life of the strengthened beam. The propagation rate of the main crack, da/dN, in phase 2 can be described by Paris formula, and the constant C and m can be confirmed by the fatigue crack propagation experiments of the RC beams strengthened with CFL under three-point bending loads.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73750Z (25 August 2009); doi: 10.1117/12.839042
Show Author Affiliations
Peiyan Huang, South China Univ. of Technology (China)
Guangwan Liu, South China Univ. of Technology (China)
Xinyan Guo, South China Univ. of Technology (China)
Man Huang, Guangzhou Univ. (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008

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