Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation of the effect of pitting corrosion on the fatigue strength degradation of structural steel using a short crack model
Steel support structures of offshore wind turbines (jackets and monopiles) undergo both fatigue and corrosion damage, impacting their lifetime. This paper investigates how pitting corrosion, caused by being exposed to the marine environment, affects the fatigue strength of structural steel. A short fatigue crack model is used to estimate the minimum required applied load amplitude which causes a growing crack emanating from the bottom of a semi-elliptical pit. Pit growth rate data, reported in literature, is employed to update the pit size and its sharpness at each time step. The modelling results show the fatigue strength degradation as a function of the exposure time to the corrosive environment. As exposure time increases, it is observed that degradation happens more quickly in the early years followed by a gradually decreasing degradation rate of the fatigue strength in the following years.
Investigation of the effect of pitting corrosion on the fatigue strength degradation of structural steel using a short crack model
Steel support structures of offshore wind turbines (jackets and monopiles) undergo both fatigue and corrosion damage, impacting their lifetime. This paper investigates how pitting corrosion, caused by being exposed to the marine environment, affects the fatigue strength of structural steel. A short fatigue crack model is used to estimate the minimum required applied load amplitude which causes a growing crack emanating from the bottom of a semi-elliptical pit. Pit growth rate data, reported in literature, is employed to update the pit size and its sharpness at each time step. The modelling results show the fatigue strength degradation as a function of the exposure time to the corrosive environment. As exposure time increases, it is observed that degradation happens more quickly in the early years followed by a gradually decreasing degradation rate of the fatigue strength in the following years.
Investigation of the effect of pitting corrosion on the fatigue strength degradation of structural steel using a short crack model
Elahi, Seyed Ahmad (Autor:in) / Mehri Sofiani, Farid (Autor:in) / Chaudhuri, Somsubhro (Autor:in) / Balbín, José Antonio (Autor:in) / Larrosa, Nicolas O. (Autor:in) / De Waele, Wim (Autor:in)
01.01.2023
PROCEDIA STRUCTURAL INTEGRITY ; ISSN: 2452-3216
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Fatigue strength degradation of structural steel in sea environment due to pitting corrosion
| BASE | 2022
Effect of pitting corrosion on fatigue crack initiation and fatigue life
| British Library Online Contents | 1999
Corrosion fatigue short crack growth behaviour in a high strength steel
| British Library Online Contents | 1996
Very High Cycle Fatigue Analysis of High Strength Steel with Corrosion Pitting
| British Library Online Contents | 2010