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http://dx.doi.org/10.3744/SNAK.2006.43.4.467

Fatigue Strength Evaluation of Rusting Decayed Hull Steel Plate in Air and in Artificial Seawater Condition  

Kim, Won-Beom (Research Institute of Industrial Technology, Pusan National University)
Paik, Jeom-Kee (Naval Architecture & Ocean Engineering, Pusan National University)
Iwata, Mitsumasa (Dept. of Engineering Systems, Hiroshima University)
Yajima, Hiroshi (Dept. of Mechanical Engineering, Nagasaki Institute of Applied Science)
Publication Information
Journal of the Society of Naval Architects of Korea / v.43, no.4, 2006 , pp. 467-475 More about this Journal
Abstract
Fatigue strength of hull structural steel plate, extracted from longitudinal bulkhead of a 17-year-old ore/oil carrier for renewal, was investigated in air and in artificial seawater condition. The surface of the plate was covered with corrosion pits and they proved to be crack initiation sites by fractography using SEM. From this research, it was found that the evaluation method for fatigue strength of virgin mild steel plates in air and in artificial seawater can also be applied to the evaluation of the fatigue strength of mild steel plates those were long-term exposed to a corrosive environment and their surfaces had been rusted intensively.
Keywords
Corrosion fatigue; Rusting decayed hull steel plate; Corrosion pit; Corrosion fatigue strength evaluation;
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