Numerical Estimation of the Stop Holes-Induced Fatigue Crack Growth Retardation in Offshore Structures Taking Into Account the Corrosion Effect

Published on Jun 25, 2017
Ove Mikkelsen5
Estimated H-index: 5
(University of Stavanger),
Kristen Rege5
Estimated H-index: 5
(University of Stavanger)
+ 1 AuthorsDimitrios G. Pavion1
Estimated H-index: 1
(University of Stavanger)
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An increasing number of the offshore structures in the North Sea are being operated in a life extension phase, which means that their original design life has been exceeded. As the structures age, they are deteriorating, mainly due to fatigue and corrosion. In order to ensure that the structural integrity is maintained during the life extension phase, the remaining fatigue life of the structures needs to be assessed. While simple and conservative approximations are used in fatigue design, it wil...
#1J E InomaH-Index: 1
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#1Nirosha D. Adasooriya (University of Stavanger)H-Index: 4
#2Tor Hemmingsen (University of Stavanger)H-Index: 9
Last. Dimitrios G. Pavlou (University of Stavanger)H-Index: 9
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Structures exposed to aggressive environmental conditions are often subjected to time-dependent loss of coating and loss of material due to corrosion; this causes reduction in the cross-sectional properties of the members, increased surface roughness, surface irregularities and corrosion pits, and degradation of material strengths. These effects have been identified and simulated in different research studies. However, time and corrosive media dependent fatigue strength curves for materials have...
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