Structural fatigue of pseudoelastic NiTi shape memory wires

Wagner, M.; Sawaguchi, T.; Kausträter, G.; Höffken, D.; Eggeler, G.

doi:10.1016/j.msea.2003.11.058

Structural fatigue of pseudoelastic NiTi shape memory wires (bibtex)

by M. Wagner, T. Sawaguchi, G. Kausträter, D. Höffken, G. Eggeler

Abstract:

In this study, we consider the influence of wire diameter and rotational speed on fatigue rupture behaviour in bending rotation fatigue experiments. We show that the dependence of fatigue life on wire diameter and rotational speed is no longer observed when the bending rotation fatigue experiments are conducted in a silicon oil bath at constant temperature, or at low rotational speeds in air. Moreover, we qualitatively discuss the stress distribution in the wire during fatigue testing as a starting point for various mechanical investigations, such as the calculation of the dissipated energy in the wire during bending rotation experiments or the bending moment acting during bending rotation.

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Reference:

Wagner, M., Sawaguchi, T., Kausträter, G., Höffken, D., Eggeler, G.: Structural fatigue of pseudoelastic NiTi shape memory wires, Materials Science and Engineering: A 378, 105-109, 2004.

Bibtex Entry:

@Article{Wagner2004a,
  author   = {Wagner, M. and Sawaguchi, T. and Kaustr\"{a}ter, G. and H\"{o}ffken, D. and Eggeler, G.},
  journal  = {Materials Science and Engineering: A},
  title    = {{Structural fatigue of pseudoelastic {NiTi} shape memory wires}},
  year     = {2004},
  issn     = {09215093},
  number   = {1-2},
  pages    = {105--109},
  volume   = {378},
  abstract = {In this study, we consider the influence of wire diameter and rotational speed on fatigue rupture behaviour in bending rotation fatigue experiments. We show that the dependence of fatigue life on wire diameter and rotational speed is no longer observed when the bending rotation fatigue experiments are conducted in a silicon oil bath at constant temperature, or at low rotational speeds in air. Moreover, we qualitatively discuss the stress distribution in the wire during fatigue testing as a starting point for various mechanical investigations, such as the calculation of the dissipated energy in the wire during bending rotation experiments or the bending moment acting during bending rotation.},
  doi      = {10.1016/j.msea.2003.11.058},
  isbn     = {4923432225},
  keywords = {Bending rotation fatigue, Influence of temperature, NiTi shape memory alloys, Stress distribution during cyclic loading},
  url      = {http://linkinghub.elsevier.com/retrieve/pii/S0921509303015260},
}