The kinetics of a fatigue crack in thin isotropic plates of finite dimensions with stress concentrators under uniaxial asymmetric tension and compression is predicted. The stress concentrator is a smooth circular central hole or a circular hole with cuts. The analytical solution is obtained using a fatigue crack propagation model that combines the concepts of crack mechanics and continuous damage mechanics. Fatigue damage accumulation is assumed to be the driving force for a fatigue crack. The duration of the crack incubation period and the dependence of the fatigue crack length on the number of load cycles are calculated. The results of calculations based on the model are in agreement with experimental data.
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Translated from Prykladna Mekhanika, Vol. 58, No. 2, pp. 81–92, March–April 2022.
This study was sponsored by the budget program “Support for Priority Areas of Scientific Research” (KPKVK 6541230).
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Plashchyns’ka, A.V. Determining the Duration of the Propagation Stages of Fatigue Cracks in Thin Aluminum Plates with Stress Concentrators. Int Appl Mech 58, 189–198 (2022). https://doi.org/10.1007/s10778-022-01146-1
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DOI: https://doi.org/10.1007/s10778-022-01146-1