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Chemical and Petroleum Engineering

, Volume 46, Issue 7–8, pp 458–467 | Cite as

Model of viscoplasticity with parallel deformation mechanisms. Part 1. Constitutive equations and choice of calculation coefficients*

  • G. M. Khazhinskii
Article
  • 31 Downloads

A model of viscoplastic deformation of strengthening material is proposed. It is assumed that metal deformation is determined by two independent (parallel) mechanisms. Each of these mechanisms corresponds to anisotropic creep theory with linear strengthening, within which an isotropic strengthening parameter is introduced for both mechanisms. The concept of surface flow is not used. The model describes material behavior at both normal and elevated temperature when thermal recovery effects develop. Results of standard tensile and creep tests are used in order to determine model parameters. The order of determining model parameters from standard tensile and creep tests is provided. Features of austenitic stainless steel cyclic strengthening are considered. An algorithm is given providing implementation of the proposed viscoplasticity theory in structural design using FEM computer packages.

Keywords

Creep Rate Austenitic Stainless Steel Strain Amplitude Austenitic Steel Cyclic Strain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    P. Paging, Basic Questions of Viscoplasticity [in Russian], G. S. Shapiro (ed.), Izd. Mir, Moscow (1966).Google Scholar
  2. 2.
    N. M. Malinin and G. M. Khazhinskii, “Theory of creep with anisotropic hardening,” Int. J. Mech. Sci., 14, 235–246 (1972).CrossRefGoogle Scholar
  3. 3.
    G. M. Khazhinskii, “One-sided strain accumulation in structures with cyclic loading,” Khim. Neftegaz. Mashinostr., No. 10, 35–38 (2007).Google Scholar
  4. 4.
    N. N. Malinin and G. M. Khazhinskii, “Creep theory with different strain mechanisms,” in: Strength of Materials and Structures [in Russian], Izd. Naukova Dumka (1975).Google Scholar
  5. 5.
    A. P. Gusenkov, “Properties of cyclic strain diagrams at normal temperature,” in: Resistance to Deformation and Failure with Low-Cycle Loading [in Russian], Nauka, Moscow (1967).Google Scholar
  6. 6.
    M. Abdel-Karim, “Assessments of unified theories in simulating creep – ratcheting behaviors of viscous materials,” 18th Int. Conf. on Struct. in React. Techn. (SMiRT 18), Beijing, China (2005).Google Scholar
  7. 7.
    G. Kang, Q. Gao, and X. Yang, “Uniaxial and non-proportionally muliti-axial ratcheting of SUS304 stainless steel at room temperature experiments and simulations,” Int. J. Nonlin. Mech., 39, 843–857 (2004).CrossRefGoogle Scholar
  8. 8.
    K. Sasaki and H. Ishikawa, “Experimental observation of viscoplastic behavior on SUS304 (creep and ratcheting behavior),” JSME Int. J. Ser. A, 38, No. 2, 265–272 (1995).Google Scholar
  9. 9.
    M. Rieth et al., “Creep of austenitic steel AISI 316L (N). Experiments and models,” Institut für Materialforschung, Program Kernfusion, Fosrchungcentrum Karlsruhe GmbH, Karlsruhe (2004).Google Scholar
  10. 10.
    J. B. Conway, R. H. Stentz, and J. T. Berling, Fatigue, Tensile, and Relaxation Behavior of Stainless Steels, Divison of Reactor Research and Development U. S. Atomic Energy Commission (1975).Google Scholar
  11. 11.
    A Buchon and P. Delobelle, “Behavior and modeling of an austenitic stainless steel under cyclic, uni- and bidirectional anisothermal loadings,” Nucl. Eng. Design, 162, 21–45 (1996).CrossRefGoogle Scholar
  12. 12.
    A. P. Gusenkov and R. M. Shneiderovich, “Properties of cyclic strain diagrams at elevated temperature,” in: Resistance to Deformation and Failure with a Small Number of Loading Cycles [in Russian], Nauka, Moscow (1967).Google Scholar
  13. 13.
    G. M. Khazhinskii, Deformation and Stress-Rupture Strength of Metals [in Russian], Nauchnyi Mir, Moscow (2008).Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  • G. M. Khazhinskii
    • 1
  1. 1.Institute for Physical Diagnostics and Modeling (IFDM)MoscowRussia

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