Dislocation dynamics theory for fatigue crack growth |
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| Authors: | T. Yokobori A. T. Yokobori Jr. A. Kamei |
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| Affiliation: | (1) Department of Mechanical Engineering II, Tohoku University, Sendai, Japan |
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| Abstract: | Dislocation group dynamics theory is used to deduce a power type expression for fatigue crack growth. In general, the results reflect only a single rate process, and thus one activation energy which is small compared to those in usual rate processes. The frequency dependence for this power function type fatigue crack growth rate was also obtained, and yield reasonable agreement with experimental results from the literature. |
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