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Functional Fatigue of Shape Memory Alloys

  • T. Ataalla
  • M. Leary
  • A. Subic

Abstract

Shape Memory Alloys (SMAs) provide an exceptional opportunity for the design of novel actuators, however their application is limited by the fatigue mode of failure. Fatigue prediction is relatively well defined for traditional materials, however, shape memory alloys display two distinct fatigue failure modes. These are structural fatigue (fracture in traditional materials) and functional fatigue (loss of shape memory effect). Functional fatigue of shape memory alloys are not well defined in literature. This work provides a novel method of analysing SMA functional fatigue data, especially when comparing a large range of potential operating conditions.

Keywords

Fatigue Life Shape Memory Alloy Linear Elastic Fracture Mechanic Shape Memory Effect Actuation Force 
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.

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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • T. Ataalla
    • 1
  • M. Leary
    • 1
  • A. Subic
    • 1
  1. 1.School of Aerospace Mechanical and Manufacturing EngineeringRMIT UniversityBundooraAustralia

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