Thermodynamics of Local State: Overall Aspects and Micromechanics Based Constitutive Relations

Authors

  • J. L. Chaboche

Abstract

The thermodynamics of irreversible processes, based on a set of internal state variables, is revisited, paying attention on two complementary aspects:
- The Generalized Standard Models are shown to introduce too stiff constraints, both for kinematic hardening and for damage modellings. A slightly less restrictive approach is then considered, based on several independent  potentials and several independent multipliers;
- The micro-macro approach of elastoplasticity is formulated through the Transformation Field Analysis of Dvorak and the use of a correction method. Moreover, based on previous works of Suquet and Nguyen, the approach is generalized with energy considerations, incorporating continuous fields of eigenstrains.

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Published

2019-08-18

How to Cite

Chaboche, J. L. (2019) “Thermodynamics of Local State: Overall Aspects and Micromechanics Based Constitutive Relations”, Technische Mechanik - European Journal of Engineering Mechanics, 23(2-4), pp. 113–129. Available at: https://journals.ub.ovgu.de/index.php/techmech/article/view/986 (Accessed: 18 July 2024).

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