Abstract
Applications of all metal sandwich panels on cruising ships are studied in this paper. The main topic discussed is the laser welding of these panels and the effect of production process on the fatigue strength of these panel and especially on the fatigue strength of the joints used. A number of the test panels are produced for shear and tension fatigue testing of the joints. In the paper the laser welding characteristics are discussed and the fatigue results are summarised. The initiation of the fatigue cracks is described and the effect of production on the location of crack intiation is discussed. The main concern is the accuracy of the corrugation of the core plate used. The corrugation is “hand made” causing some problems for the welding process. The planned applications of the all-steel sandwich panels on a erasing ship are discussed. At present the technology is available to install these panels as longitudinal bulkheads on a erasing ship. The application of these panels as deck structures need some further development which are shortly also summarised in the paper.Applications of all metal sandwich panels on cruising ships are studied in this paper. The main topic discussed is the laser welding of these panels and the effect of production process on the fatigue strength of these panel and especially on the fatigue strength of the joints used. A number of the test panels are produced for shear and tension fatigue testing of the joints. In the paper the laser welding characteristics are discussed and the fatigue results are summarised. The initiation of the fatigue cracks is described and the effect of production on the location of crack intiation is discussed. The main concern is the accuracy of the corrugation of the core plate used. The corrugation is “hand made” causing some problems for the welding process. The planned applications of the all-steel sandwich panels on a erasing ship are discussed. At present the technology is available to install these panels as longitudinal bulkheads on a erasing ship. The application of these panels as deck structures need some...
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