R&D – Heikki Remes at the Aalto University School of Engineering, Department of Applied Mechanics, has developed a model making it possible to determine how fatigue sets in with various welded steel materials. The model allows for the development of lighter structures, and as a consequence, more energy-efficient ships.
At present the fatigue measurements used by classification societies are based on the average quality of the weld. The same design guideline is used both with traditional and more advanced structures. With the models that have been developed, it is possible to consider the difference between traditional and advanced structural joints and the impact on fatigue resistance. more> http://tinyurl.com/b4a58ub