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Publications
Shi, X.H., Hu, Y., Chen, B.Q. and Zhang, J. (2025), Experimental study on the CFRP repair effect on the ultimate strength of pitted stiffened plates, Ocean Engineering, Vol. 339, 122001.
This study investigates the repair effect on the ultimate strength of the pitting stiffened plate. A series of experiments were performed, as the pitting stiffened plates were strengthened by CFRP (Carbon Fiber Reinforced Polymer) and a combination of CFRP and GFRP (Glass Fiber Reinforced Polymer), to examine the repair factors including CFRP area, repair position and combination of CFRP and GFRP fillers. The CFRP repair was verified to be effective on the ultimate strength, comparing the results of the pitted stiffened plate without repair. It is found that with 300 mm*1200 mm CFRP repair, the ultimate was increased by 14 %. The repair with 250 mm*450 mm on the surface of the pitting surface increase the ultimate strength by 8 %, while the repair on the surface of the non-pitting surface by 5 %, and the GFRP filler + CFRP increase the ultimate strength by 11 %.
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