A new nonlinear fatigue model based on isodamage curves is proposed. A single atlas of fatigue curves pdf is sufficient to predict the remaining life for four steels.
A review of existing important models is provided. A nonlinear model for fatigue damage accumulation under variable amplitude loading is presented. The known assumption that the isodamage curves are converging at the knee point of the S-N curve of the material, has been adopted. The proposed model does only require one parameter, in addition to the S-N curve of the material, in order to calculate the remaining fatigue life.
A single value for the parameter has been found to give satisfying agreement with experimental data for four arbitrary selected steels, indicating a general trend. Check if you have access through your login credentials or your institution. WebMD experts and contributors provide answers to your health questions. If you select “Keep me signed in on this computer”, you can stay signed in to WebMD. 2 weeks or until you sign out.
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