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Model of viscoplasticity with parallel deformation mechanisms. Part 2. Creep and ratcheting

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Chemical and Petroleum Engineering Aims and scope

A model of viscoplastic deformation for strengthening materials is considered within which metal deformation is governed by two independent (parallel) mechanisms. Each of these mechanisms corresponds to anisotropic creep theory with linear strengthening into which an isotropic strengthening parameter is introduced common for both mechanisms. The concept of surface flow is not used. In the second part of the article, unilateral strain accumulation (ratcheting) is considered in structures at elevated temperature and with cyclic loading. The possibilities of the model are demonstrated with description of experiments on austenitic stainless steel specimens with different programs for a change in load.

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Authors and Affiliations

  1. Institute for Physical Diagnostics and Modeling (IFDM), Moscow, Russia

    G. M. Khazhinskii

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  1. G. M. Khazhinskii
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Additional information

For Part 1, see No. 8 (2010).

Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, No. 9, pp. 21–24, September, 2010.

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Khazhinskii, G.M. Model of viscoplasticity with parallel deformation mechanisms. Part 2. Creep and ratcheting. Chem Petrol Eng 46, 525–531 (2011). https://doi.org/10.1007/s10556-011-9371-8

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  • DOI: https://doi.org/10.1007/s10556-011-9371-8

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