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http://dx.doi.org/10.3744/SNAK.2002.39.1.090

Fatigue Life Assessment of Ship Structures based on Crack Propagation Analysis -Simplified Prediction Method of Stress Intensity Factors-  

C.W. Kim (한국선급 선체기술부 화물선팀)
I.S. Nho (충남대학교 선박해양공학과)
D.S. Kim (현대중공업)
Publication Information
Journal of the Society of Naval Architects of Korea / v.39, no.1, 2002 , pp. 90-99 More about this Journal
Abstract
The prediction of stress intensity factor(SIF) is one of the most important factors to analyse the propagation behavior of cracks in hull structural members. Up to now, however, simplified prediction method of SIF has not yet been established for the cracks experienced in large complex structures. As a first step to predict crack propagation behavior in a ship structure with very large structural redundancies, simplified SIF prediction formulas for various crack shapes were derived based on the results of the stress analysis under a non-crack condition in this study. The adequacy of the proposed method was then verified in comparison with other experimental and analysis results.
Keywords
fatigue; fracture mechanics; stress intensity factor; crack propagation;
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