The attenuation mechanism of CFRP repaired corroded marine pipelines based on experiments and FEM

In this research, the durability of Carbon Fiber Reinforced Polymer (CFRP) repaired corroded marine pipelines with the bending moment and seawater immersion was studied using experiments. The durability factors were studied, and the attenuation of the repaired structure was broken into the attenuati...

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Bibliographic Details
Published inThin-walled structures Vol. 169; p. 108469
Main Authors Zhang, Yu, Liu, Zhuangzhuang, Xin, Jianhang, Wang, Yao, Zhang, Caiying, Zhang, Yi
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2021
Subjects
Attenuation law
CFRP repair
Durability factor
Finite Element Method
Interfacial strength
Marine pipeline
CFRP repair
Attenuation law
Durability factor
Finite Element Method
Marine pipeline
Interfacial strength
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Summary:In this research, the durability of Carbon Fiber Reinforced Polymer (CFRP) repaired corroded marine pipelines with the bending moment and seawater immersion was studied using experiments. The durability factors were studied, and the attenuation of the repaired structure was broken into the attenuation of CFRP and the interface between the CFRP and the steel. Based on the attenuation law, a numerical damage model of CFRP repaired pipelines was constructed using Finite Element Method (FEM). The mechanical properties of the repaired pipelines after long-term durability conditions were obtained numerically. These properties were almost the same as those for the experimental results. •The durability and attenuation laws of CFRP repaired pipelines were studied.•A numerical damage model of CFRP repaired pipelines was constructed using FEM.•The attenuation laws of repaired pipelines could be accurately obtained using FEM.
ISSN:0263-8231
1879-3223
DOI:10.1016/j.tws.2021.108469