Probabilistic study of the effects of leaving fatigue cracks unrepaired in a ship

J. S. Kent, P. K. Das, N. D. P. Barltrop, J. D. G. Sumpter

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

A methodology to quantify the risk of leaving fatigue cracks unrepaired while a ship is in service is described. The basic variables used and the approaches to quantify their variability are described. Three different methods have been used to characterize the variation in toughness values between plates. Two of these keep the sampled toughness value constant as the crack grows while the third, a variable toughness model, tries to account for the variation in the toughness values as the crack grows. Preliminary results are also presented and the reasons for the results are discussed.

Original languageEnglish
Title of host publicationASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
Place of PublicationNew York, USA
Pages301-308
Number of pages8
DOIs
Publication statusPublished - 14 Dec 2002
Event21st International Conference on Offshore Mechanics and Arctic Engineering (OMAE) - Oslo, Norway
Duration: 23 Jun 200228 Jun 2002

Conference

Conference21st International Conference on Offshore Mechanics and Arctic Engineering (OMAE)
CountryNorway
CityOslo
Period23/06/0228/06/02

Keywords

  • fatigue cracks
  • risk
  • ships
  • plates (structures)
  • fracture (materials)
  • fracture toughness

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