Abstract
The study is about the determination of the fatigue life for the shaft being bent made of the materials of two types. These are 10HNAP steel and 6082-T6 aluminium. The lives have been determined using the stress amplitude and the nominal strain as well as according to a elasto-plastic model. To find out the fatigue life both the stress and deformation fatigue characteristics determined in the tests carried out in tension-compression conditions and cyclic bending have been used. It has been shown that for the loading of an element with a bending moment and with the use the tension-compression characteristic in the calculations the computational fatigue life is definitely underestimated. Particularly, this can be noticed when the stress characteristics and the minimum stress are used in calculations. A lower error is obtained when deformation characteristics are used, Besides, higher differences occur in the calculations for steel elements rather than aluminium ones.
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This work has been carried out under the grant of National Science Centre (Poland) no. 2015/19/B/ST8/01115.
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Koziarska, J., Kurek, A., Łagoda, T. (2019). Designing of the Structure Elements Being Bent from the Fatigue Life Point of View. In: Rusiński, E., Pietrusiak, D. (eds) Proceedings of the 14th International Scientific Conference: Computer Aided Engineering. CAE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-04975-1_41
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DOI: https://doi.org/10.1007/978-3-030-04975-1_41
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