A proposal on ultra-low cycle fatigue damage evaluation of structural steels

The ductile crack initiation observed in structural steels subjected to ultra-low cycle fatigue (ULCF) loading often leads to the catastrophic failure in steel structures. In the existing ULCF damage models, there is always a contradiction between the cost of model parameters calibration and prediction accuracy. In order to solve the contradiction, a one-parameter model for ULCF damage evaluation of structural steels was proposed based on the...