An approach to the determination of steady ratcheting strain rate under biaxial loading depending on the loading cycle geometry is proposed. Based on the data analysis, the microstructural investigation results, as well as the similarity detected between the microstructural formations after deformation at the stress- and strain-controlled modes of loading, it is proposed to use the cycle nonproportionality parameter to predict the ratcheting rate. It is shown that the geometric cycle parameters and basic experiments allow one to adequately predict the ratcheting rate for complex cyclic paths.
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Translated from Problemy Prochnosti, No. 2, pp. 49 – 55, March – April, 2017.
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Adamchuk, M.P., Borodii, M.V. Determination of Steady Ratcheting Strain Rate Under Biaxial Loading Based on Cycle Nonproportionality Coefficient. Strength Mater 49, 250–255 (2017). https://doi.org/10.1007/s11223-017-9864-6
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DOI: https://doi.org/10.1007/s11223-017-9864-6