Finite Element Analysis for the Fatigue Behavior of Steel Plates Strengthened with CFRP Plates

Zheng Yun; Lie Ping Ye; Xin Zheng Lu; Qing Rui Yue

doi:10.4028/www.scientific.net/KEM.324-325.359

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 324-325Finite Element Analysis for the Fatigue Behavior...

Finite Element Analysis for the Fatigue Behavior of Steel Plates Strengthened with CFRP Plates

Abstract:

The experimental research on six steel plates strengthened with CFRP plates, loaded in tension, shows that their fatigue lives can be greatly increased compared with un-strengthened specimens. Linear elastic fracture mechanics (LEFM) is adopted to explain the mechanism of CFRP plates strengthening. The stress intensity factors of the steel plates are calculated with finite element method (FEM), and Paris law on crack propagation is used to predict the fatigue life of strengthened specimens. The comparison between experimental results and numerical predictions shows good agreements on the fatigue crack propagation.

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Periodical:

Key Engineering Materials (Volumes 324-325)

Pages:

359-362

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.324-325.359

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Online since:

November 2006

Authors:

Zheng Yun, Lie Ping Ye, Xin Zheng Lu, Qing Rui Yue

Keywords:

Carbon Fiber Reinforced Polymer/Plastic (CFRP), Fatigue Life, Linear Elastic Fracture Mechanics (LEFM), Stress Intensity Factor (SIF)

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References

[1] Zheng Yun, L.P. Ye and Q.R. Yue(2005): Progress in research on steel structures strengthened with FRP, Industrial Construction, Vol. 35, No. 8, p.20~25.

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