Article ID Journal Published Year Pages File Type
6707006 Composite Structures 2015 41 Pages PDF
Abstract
The fatigue performance of steel plates retrofitted with CFRP patches was investigated in this research. The test samples included three main types: reference centre-notched steel plates (unrepaired), repaired centre-notched steel plates using CFRP patches and repaired centre-notched steel plates using prestressed CFRP patches. In the specimens in which prestressed CFRP patches were used, the patches consisted of 1 or 2 layers of CFRP sheets and were prestressed up to 25% or 50% of their ultimate capacity. All specimens were then tested under uniaxial tensile fatigue. In order to measure the crack propagation rate, the beach marking method was used. Two different double-block fatigue loads were studied: one causing a stress range of 135 MPa and the other with a stress range of 150 MPa relative to the gross section of the steel plate.
Related Topics
Physical Sciences and Engineering Engineering Civil and Structural Engineering
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