Thermomechanical representation of shape memory behavior

Dirk Helm; Peter Haupt

doi:10.1117/12.350086

4 June 1999 Thermomechanical representation of shape memory behavior

Dirk Helm, Peter Haupt

Author Affiliations +

Proceedings Volume 3667, Smart Structures and Materials 1999: Mathematics and Control in Smart Structures; (1999) https://doi.org/10.1117/12.350086
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

In this article we propose a material model for the representation of shape memory behavior based on a phenomenological thermoviscoplasticity theory. The constitutive model is thermodynamically consistent in the sense of its compatibility with the Clausius-Duhem inequality as a special formulation of the 2nd law of thermodynamics. Numerical solutions of the constitutive equations for isothermal and nonisothermal strain and stress processes demonstrate that the behavior of these materials, namely the one- and two-way shape memory effect, the pseudoelasticity and the pseudoplasticity as well as the transition region between pseudoelasticity and pseudoplasticity, is depicted as observed.

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Dirk Helm and Peter Haupt "Thermomechanical representation of shape memory behavior", Proc. SPIE 3667, Smart Structures and Materials 1999: Mathematics and Control in Smart Structures, (4 June 1999); https://doi.org/10.1117/12.350086

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