Fatigue model to improve durability

Currently, fatigue measurements used by classification societies are based on the average quality of welded steel materials and are used for both traditional and more advanced structures.

According to Mr Remes’ research, through the development of manufacturing technology, it is possible to achieve characteristics for welded joints that are significantly better than average.

The new model makes it possible to consider the difference between traditional and advanced structural joints and the impact on fatigue resistance.

Mr Remes said: “By utilising modern manufacturing technology and new materials, it is possible to achieve more efficient structures than the ones that currently exist. In addition, better physical models are needed to ensure structural strength.”

The findings have been published in the International Journal of Fatigue. The aim of study is to predict fatigue endurance more accurately and to utilise material in the final product more efficiently.

The research was funded by the Academy of Finland, Tekes, STX Europe and the Finnish Maritime Foundation.

For more information visit: www.sciencedirect.com/science/article/pii/S0142112313000856