Abstract
The fatigue assessment of welded ship structures includes high uncertainties. One source of uncertainty is the determination of relevant local stresses. To quantify the uncertainties and to improve the analysis guidelines, round robin studies were performed within the Network of Excellence on Marine Structures (MARSTRUCT) project. One recent study concerned load-carrying fillet welds, which are treated in different ways in structural stress approaches. In total, five partners participated in the work. Two structural configurations of 12 mm thick plates were analysed, that is, double-sided lap joints and doubler plates, each with two different weld throat thicknesses (2.5 mm and 7 mm). Differences in the results were identified and conclusions were drawn with respect to modelling guidelines and typical scatter of computed fatigue lives.
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