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Micro-Mechanical Modelling of the Constitutive Behaviour of NiTi Shape Memory Alloys

  1. Wenge Zhang*,
  2. Klaus Hackl†,
  3. Ulrich Hoppe

Article first published online: 24 NOV 2004

DOI: 10.1002/pamm.200410117

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PAMM

PAMM

Volume 4, Issue 1, pages 272–273, December 2004

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How to Cite

Zhang, W., Hackl, K. and Hoppe, U. (2004), Micro-Mechanical Modelling of the Constitutive Behaviour of NiTi Shape Memory Alloys. Proc. Appl. Math. Mech., 4: 272–273. doi: 10.1002/pamm.200410117

Author Information

  1. Institute of Mechanics, University of Bochum, D-44780 Bochum, Germany

  1. †

    Phone: +49 234 3225729,Fax: +49 234 3214154

*Phone: +49 234 3225796, Fax: +49 234 3214154

Publication History

  1. Issue published online: 24 NOV 2004
  2. Article first published online: 24 NOV 2004

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Abstract

The superelasticity and shape memory effect in NiTi alloys are examined on the basis of micromechanics within the energy minimization framework. We describe the behaviour of polycrystalline shape-memory alloys via orientation-distribution of the various martensite-variants (domains) present in the material. Stress-strain curves are presented and special attention is payed to the volume fraction of martensite for specific NiTi alloys (Nitinol) specimen under uniaxial tension. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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