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http://dx.doi.org/10.3744/SNAK.2008.45.3.296

A Comparative Study for the Fatigue Assessment of Side Shell Longitudinals on 8,100 TEU Container Carrier using Hot Spot Stress and Structural Stress Approaches  

Kim, Seong-Min (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Myung-Hyun (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kang, Sung-Won (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Pyun, Jang-Hoon (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Young-Nam (Hanjin Heavy Industries & Construction CO., LTD.)
Kim, Sung-Geun (Hanjin Heavy Industries & Construction CO., LTD.)
Lee, Kyong-Eon (Hanjin Heavy Industries & Construction CO., LTD.)
Kim, Gyeng-Rae (Hanjin Heavy Industries & Construction CO., LTD.)
Publication Information
Journal of the Society of Naval Architects of Korea / v.45, no.3, 2008 , pp. 296-302 More about this Journal
Abstract
Recently, a mesh-size insensitive structural stress definition (structural stress method) is proposed that gives a stress state at weld toe with a relatively large mesh size. The structural stress definition is based on the elementary structural mechanics theory and provides an effective measure of a stress state in front of weld toe. In this study, a fatigue strength assessment for a side shell connection of a container vessel using both the hot spot stress and the Battelle structural stress method was carried out. A consistent approach to compute the extrapolated hot spot stress for design purpose is described and current fatigue guidance is evaluated. Fatigue strength predicted by the two methodologies, e.g. hot spot stress and structural stress approaches, at hot spot locations of a typical ship structure are compared and discussed.
Keywords
Fatigue design; Structural stress; Hot spot stress; Welded structures; Fatigue life; Fatigue strength evaluation;
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  • Reference
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