Uncertainties in fatigue assessments of ship structures: Definitions and priorities
conference paper
Ship structures endure dynamic loads that can lead to fatigue cracks, jeopardizing their seaworthiness. To address this issue, various codes and guidelines are implemented for fatigue design to ensure safety. Despite these measures, significant uncertainty exists regarding the fatigue loads and resistance of ship structures throughout their lifespan. Existing standards from organizations like DNV and the Joint Committee on Structural Safety suggest parameters addressing several uncertainties, but their explanations are limited, leaving their comprehensiveness uncertain. Current codes typically incorporate these uncertainties into safety factors without explicit definitions. This study aims to establish clear definitions on uncertainties in the fatigue design of ship structures. Experts in fatigue design and ship asset management rank these uncertainties on their variability and impact on fatigue life assessment based on their experience. The findings aim to provide priorities for future research to efficiently reduce uncertainties in the fatigue lifetime prediction of ship structures.
TNO Identifier
1014937
ISBN
978-1-041-07825-8
Publisher
CRC Press
Source title
Innovations in the Analysis and Design of Marine Structures - Proceedings of the 10th International Conference on Marine Structures (MARSTRUCT 2025), Lisbon, Portugal, 20-22 May 2025
Editor(s)
Garbatov, Y.
Soares, G.
Soares, G.
Place of publication
Abingdon
Pages
711-719
Files
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