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FEM simulation of the Nitinol wire

  • N. VidalEmail author
  • E. Asua
  • J. Feuchtwanger
  • A. Garcia-Arribas
  • J. Gutierrez
  • J. M. Barandiaran
Article

Abstract.

In recent years, one of the most promising new actuator technologies is based on the use of Shape Memory Alloys (SMA). The main challenge for the application of devices that use these materials is the hysteresis in the phase transition they suffer during actuation. Finite element analysis (FEA) is an important aid in the simulation of mechanical properties and thermal fields in actuators. Dynamic simulations give in many cases enough information without the necessity of building a prototype. We have used ABAQUS to simulate a Nitinol wire used in a micropositioning actuator. The model parameters, not given by the supplier but required by the FEA program, have been obtained by thermal and mechanical characterization of the material used. The output force is computed and compared with the measurements.

Keywords

Austenite Martensite Shape Memory Alloy European Physical Journal Special Topic Phase Transition Temperature 
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

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Authors and Affiliations

  • N. Vidal
    • 1
    Email author
  • E. Asua
    • 1
  • J. Feuchtwanger
    • 1
  • A. Garcia-Arribas
    • 1
  • J. Gutierrez
    • 1
  • J. M. Barandiaran
    • 1
  1. 1.Department of Electricity and ElectronicsFaculty of Science and Technology, University of Basque CountryLeioaSpain

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