Abstract
We propose a rule for the description of the accumulation of damage in materials under the conditions of cyclic straining. By using this rule, we study the processes of cyclic elastoplastic straining at the crack tip and deduce new kinetic equations of fatigue-crack propagation. It is established that the growth rate of a macrocrack in a cyclically deformed body depends not only on the parameters of loading and known strength characteristics of the material but also on the parameters taking into account the intensity of accumulation of defects and the instability of width of the hysteresis loop observed as the number of loading cycles increases.
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Panasyuk, V.V., Sylovanyuk, V.P. A Computational Model of Fatigue Fracture of Materials. Materials Science 39, 351–364 (2003). https://doi.org/10.1023/B:MASC.0000010740.79476.62
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DOI: https://doi.org/10.1023/B:MASC.0000010740.79476.62