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Thermal Stresses in Severe Environments pp 47–60Cite as

A Coupled, Isotropic Theory of Thermoviscoplasticity and its Prediction for Stress and Strain Controlled Loading in Torsion

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Abstract

A coupled, isotropic, infinitesimal theory of thermoviscoplasticity was developed in [32,33] and applied to a variety of loadings including thermal monotonic and cyclic straining [32]. In this paper we rederive the coupled equatioris using the first law of thermodynamics. The predictions of the theory in torsion are examined qualitatively and by numerical experiments. They simulate monotonic loading at loading rates differing by four orders of magnitude. Jumps in loading rate are also included. The theory exhibits initial linear elastic response followed by nonlinear, rate-dependent plastic behavior. The adiabatic temperature changes are initially isothermal followed by heating. The theory exhibits rate-dependence, a difference in strain and stress controlled loading and deformation induced temperature changes which are qualitatively in agreement with recent experiments.

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Author information

Authors and Affiliations

  1. Dept. of Mechanical Eng., University of Colorado, Boulder, CO, 80301, USA

    E. P. Cernocky

  2. Dept. of Mechanical Eng., Rensselaer Polytechnic Institute, Troy, NY, 12181, USA

    E. Krempl

  3. Aeronautical Eng. & Mechanics, Rensselaer Polytechnic Institute, Troy, NY, 12181, USA

    E. Krempl

Authors
  1. E. P. Cernocky
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  2. E. Krempl
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Editor information

Editors and Affiliations

  1. Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA

    D. P. H. Hasselman  & R. A. Heller  & 

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© 1980 Plenum Press, New York

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Cernocky, E.P., Krempl, E. (1980). A Coupled, Isotropic Theory of Thermoviscoplasticity and its Prediction for Stress and Strain Controlled Loading in Torsion. In: Hasselman, D.P.H., Heller, R.A. (eds) Thermal Stresses in Severe Environments. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3156-8_5

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  • DOI: https://doi.org/10.1007/978-1-4613-3156-8_5

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-3158-2

  • Online ISBN: 978-1-4613-3156-8

  • eBook Packages: Springer Book Archive

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