Abstract
Our study utilizes a range of cumulative fatigue damage models to better understand the behavior of high-strength steels, addressing some of the shortcomings in current methodologies. To achieve this goal, a series of mechanical tests were performed on two types of HSS, S690, and S960, to understand the properties of these materials and determine their effect on the ability to resist fatigue damage. The accuracy of each model is determined based on the fatigue tested and S-N curves formed. The results are analyzed to determine which models are appropriate for predicting the fatigue behavior of high-strength steels. Overall, this study provides valuable insight into the fatigue behavior of HSS and highlights the need for further research in this area. By expanding our understanding of the properties of HSS, we can continue to develop new and innovative ways to utilize this material in construction, ultimately leading to safer and more reliable structures.

Key words
high-strength steels (HSS), cumulative fatigue damage analysis, Haibach model, Corten-Dolan model, Palmgren-Miner model

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