This paper focuses on computer-based techniques used for optimizing and accelerating laboratory fatigue tests. After a short review of the available methodologies, a practical application is presented on a real automotive component undergoing complex loadings. Using a multi-axial non-proportional fatigue damage model to identify damaging sections of loading histories, combined with advanced joining functions of retained time windows, allows accelerating the full test from 34 days to 11 days. Applying the edited signals enables testing 3 suspension modules for the same duration needed to test one system using the original time histories. This reduces costs, time to market and increases design confidence.
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