The Attenuation Mechanism of CFRP Repaired Corroded Marine Pipelines Based on Experiments and FEM

In this chapter, 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.