Abstract
Four methods for computing the equivalent stress amplitude as the response to the mean stress effect are compared. They all include one additional parameter, which was optimized for 19 different data sets. Trends of the optimized parameters were analyzed, and their estimates were recommended. These recommended values were then checked on the same test set. The final results favor use of the Bergmann and the Walker methods, while the Linear method built as a generalization of the Goodman formula results in a weak output.
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Acknowledgements
Authors acknowledge support from the ESIF, EU Operational Programme Research, Development and Education, and from the Center of Advanced Aerospace Technology (CZ.02.1.01/0.0/0.0/16_019/0000826), Faculty of Mechanical Engineering, Czech Technical University in Prague.
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Papuga, J., Vízková, I., Lutovinov, M., Nesládek, M. (2019). Comparison of Several Optimized Methods for Mean Stress Effect Evaluating the Stress-Life Prediction. In: Correia, J., De Jesus, A., Fernandes, A., Calçada, R. (eds) Mechanical Fatigue of Metals. Structural Integrity, vol 7. Springer, Cham. https://doi.org/10.1007/978-3-030-13980-3_30
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DOI: https://doi.org/10.1007/978-3-030-13980-3_30
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