Damage accumulation stages in polycrystalline duralumin under static fatigue loading |
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| Authors: | P. P. Kaminskii V. V. Kibitkin Yu. A. Khon |
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| Affiliation: | Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, pr. Akademicheskii, 2/1, Tomsk 634021, Russia |
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| Abstract: | Two groups of mode changes in the internal structure of a cyclically loaded tension specimen containing a circular hole are analyzed. Their association with order-dependent parameters are also identified. Solutions are obtained and they show that stage I and II deformation in the vicinity of a macroscale stress concentrator is caused by an occupation wave where the velocity is bounded below certain limiting value. Stage III deformation occurs in the strain-localization region. |
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