Comparative fatigue strength assessment of a structural detail in a containership using various approaches of classification societies

W. Fricke (Corresponding Author), W. Cui, H. Kierkegaard, D. Kihl, M. Koval, Timo Mikkola, G. Parmentier, M. Toyosada, J.H. Yoon

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Abstract

A comparative study on fatigue strength assessment procedures used by the classification societies has been performed by Committee III.2, ‘Fatigue and Fracture’, of the International Ship and Offshore Structures Congress (ISSC’2000).
A pad detail on the longitudinal coaming of a Panamax container vessel was selected as an example. This detail was chosen because of the well-defined loading due to hull girder bending. Large differences in predicted fatigue lives were found, ranging from 1.8 to 20.7 years.
The spreading of results is attributable to assumptions regarding loads, local stress determination and S–N curve. For comparison, a direct calculation of loads using the spectral method was performed.
Also this calculation showed a relatively short fatigue life of 5.3 years, although the structural detail is considered not to be prone to fatigue failures.
Original languageEnglish
Pages (from-to)1-13
JournalMarine Structures
Volume15
Issue number1
DOIs
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed

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Keywords

  • fatigue strength assessment
  • welded detail
  • classification society
  • container ship
  • fatigue life

Cite this

Fricke, W., Cui, W., Kierkegaard, H., Kihl, D., Koval, M., Mikkola, T., Parmentier, G., Toyosada, M., & Yoon, J. H. (2002). Comparative fatigue strength assessment of a structural detail in a containership using various approaches of classification societies. Marine Structures, 15(1), 1-13. https://doi.org/10.1016/S0951-8339(01)00016-8