Reworking the fatigue model

摘要

New fatigue models offer a key to the better utilisation of new materials and modern production technology in marine structures. Heikki Remes and Jani Romanoff of Aalto University, School of Engineering, Department of Applied Mechanics report. At present, the fatigue design methods used by classification societies are based on the average quality of the production. The same design recommendation and guidelines [1-2] are used both with traditional and more advanced structures. However, through the development of manufacturing technology, it is possible to achieve characteristics that are significantly better than average. As results of the increased surface quality, the fatigue strength is significantly increased for both non-welded and welded material as shown in Figure 1A and B, respectively [3-6].