EFFECT OF MARINE ENVIRONMENT ON THE MECHANICAL PERFORMANCE OF FRP-STEEL JOINTS

Autor: Vieira, P.S.C., Silva, G.A., Bezerra, J.H.N., Guimaraes, P., de Sa, F.R.G., Ferreira, C.G., Lopes, B.J., da Silva, A.H.M.F.T., Perrut, V.A., Lana, L.D.M., Cardoso, D.C.T.
Rok vydání: 2023
DOI: 10.5281/zenodo.8092092
Popis: Fiber-reinforced polymer (FRP) composites have been increasingly used in the repair of steel pipelines, mainly attributed to the superior material’s properties. The advantages of FRP composites include their lightness, corrosion and environmental resistance, high mechanical strength, high stiffness, and low maintenance cost. These advantages have been explored by the oil and gas industry, where topside steel pipelines are often exposed to harsh marine environments characterized by high relative humidity and saline atmosphere. This research aims to evaluate the effects of temperature and saline environment on the steel-composite joint system and their interface. Specimens prepared with various surface configurations were subjected to accelerated aging in salt-spray chambers at temperatures of 35 ºC, 55 ºC and 70 ºC. The results reported include composite water sorption and joint double lap shear strength with time. Lastly, strength degradation model was evaluated.
Paper 69
Databáze: OpenAIRE