Prediction of Random High-Cycle Fatigue Life of LWR Components

Abstract

This state-of-the-art review identifies and discusses the existing methods of predicting the high-cycle fatigue life, their limitations, and base-technology needs. The cycle stress-strain approach and the random vibration approach are reviewed, evaluated and discussed. It is applicable to estimating high-cycle fatigue damages of Light Water Reactor (LWR) components under the random excitation typical of flow-induced vibration.