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Repair of Offshore Structures by Underwater Wet Welding Design and Fatigue Assessment
Krohn, A.,Petershagen, H.,Pohl, R.,Szelagowski, P.,Lafaye, G The Society of Naval Architects of Korea 1997 Journal of ship and ocean technology Vol.1 No.1
Under water wet welding is an economically alternative for the repair of offshore structures. In this paper investigations on the fatigue strength of a wet welded pipe structural member have been reported. For the connection a special sleeve patch design has been developed. The joint was fatigue tested. The evaluation of the test was carried out by means of the hot-spot approach with regard to several extrapolation rules of the hot-spot stress. Obtained results have been compared to actual classfication rules and recommendations.