Abstract
The advantages provided by using high strength structural (HSS) steels for offshore construction might be limited by the fatigue resistance properties of the welded connections. Since fatigue crack propagation characteristics are not significantly different between low and high strength structural steels, the best way to improve the fatigue resistance of welded joints in HSS steels is to introduce a longer initiation period. For this purpose, we developed two complementary procedures: an improved weld procedure, and a global post weld improvement technique.
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