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A phenomenological model for the simulation of functional fatigue in shape memory alloy wires

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Author

Summary, in English

In this contribution, a modelling framework for functional fatigue in shape memory alloy wires is introduced. The approach is in particular designed to reproduce the effective response determined by experiments as published in, e.g., Eggeler et al. (Mat Sci Eng A 378:24–33, 2004). In this context, the decrease of transformation stresses, the increase of irreversible strains, and the occurrence of “characteristic points” with respect to the stress-strain relation is explicitly covered in the model formulation. The modelling approach for the phase transformations itself offers a large potential for further micromechanically well-motivated model extensions.

Department/s

Publishing year

2017-03

Language

English

Pages

973-988

Publication/Series

Meccanica

Volume

52

Issue

4-5

Document type

Journal article

Publisher

Springer

Topic

  • Metallurgy and Metallic Materials

Keywords

  • Cyclic loading
  • Functional fatigue
  • NiTi wires
  • Shape memory alloys

Status

Published

ISBN/ISSN/Other

  • ISSN: 0025-6455