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6 - Fatigue Limit States

Published online by Cambridge University Press:  27 January 2022

Jeom Kee Paik
Jeom Kee Paik
Affiliation:
University College London
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Summary

Fatigue cracking damage is a primary reason why aging structures require expensive repair work. In this context, fatigue limit states (FLS) are equally relevant among the four types of limit states (described in Section 5.1). FLS describe conditions in which a particular structural member or an entire structure fails to perform its designated function because of the initiation and growth of cracking damage (Paik 2018, 2020). FLS are associated with structural details that are vulnerable to stress concentration and crack damage accumulation under repeated loading. Cracks also form as a result of defects that are generated during the fabrication of a structure, and may remain undetected and increase in size. Under further cyclic loading or monotonic extreme loading, such cracks and defects grow with time, as shown in Figure 6.1. Large cracks may lead to the progressive or catastrophic failure of a structure in association with ultimate limit states (described in Chapter 7), and thus FLS design and engineering, coupled with close-up survey and maintenance strategies, is needed to obtain crack-tolerant structures.

Type
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Ship-Shaped Offshore Installations
Design, Construction, Operation, Healthcare and Decommissioning
 , pp. 183 - 214
Publisher: Cambridge University Press
Print publication year: 2022

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References

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  • Fatigue Limit States
  • Jeom Kee Paik, University College London
  • Book: Ship-Shaped Offshore Installations
  • Online publication: 27 January 2022
  • Chapter DOI: https://doi.org/10.1017/9781009024471.008
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  • Fatigue Limit States
  • Jeom Kee Paik, University College London
  • Book: Ship-Shaped Offshore Installations
  • Online publication: 27 January 2022
  • Chapter DOI: https://doi.org/10.1017/9781009024471.008
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Fatigue Limit States
  • Jeom Kee Paik, University College London
  • Book: Ship-Shaped Offshore Installations
  • Online publication: 27 January 2022
  • Chapter DOI: https://doi.org/10.1017/9781009024471.008
Available formats
×