Fatigue lifetime of welded joints under random loading: rainflow cycle vs. Cycle sequence method

摘要

The evaluation of fatigue lifetime is a complex problem due to the loading cycle sequence effect influencing the fatigue damage process. In the literature two different approaches are usually adopted to solve the fatigue crack growth under time varying loading: the rainflow cycle (RFC) and the cycle sequence (CSQ) model. In this paper the performance of the recently proposed stochastic version of these methods is compared and applied to the evaluation of the fatigue lifetime.