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Modelling and simulation of cyclic thermomechanical behaviour of NiTi wires using a weak discontinuity approach

Bartel, T. and Menzel, A. LU (2016) In International Journal of Fracture 202(2). p.281-293
Abstract

In this contribution, a thermodynamically consistent and mathematically canonical modelling framework for the investigation of the cyclic thermomechanical behaviour of Nickel-Titanium shape memory alloy wires is developed. Particular focus is placed on the self-heating of the material subjected to multiple load cycles. The relatively high load rates necessitates the consideration of inertia terms, the applied load amplitudes of six percent strain motivates the use of a non-linear, Hencky-type strain measure. Comparisons of the results with experimental data on the one hand reveal reasonable results and on the other hand underline the necessity of further model enhancements.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cyclic loading, NiTi wires, Self heating, Shape memory alloys
in
International Journal of Fracture
volume
202
issue
2
pages
13 pages
publisher
Springer
external identifiers
  • scopus:84992205966
  • wos:000388830500013
ISSN
0376-9429
DOI
10.1007/s10704-016-0156-0
language
English
LU publication?
yes
id
c8b0e11e-7498-4964-a60d-05b78bcb93e2
date added to LUP
2016-11-09 08:39:45
date last changed
2017-09-18 11:29:49
@article{c8b0e11e-7498-4964-a60d-05b78bcb93e2,
  abstract     = {<p>In this contribution, a thermodynamically consistent and mathematically canonical modelling framework for the investigation of the cyclic thermomechanical behaviour of Nickel-Titanium shape memory alloy wires is developed. Particular focus is placed on the self-heating of the material subjected to multiple load cycles. The relatively high load rates necessitates the consideration of inertia terms, the applied load amplitudes of six percent strain motivates the use of a non-linear, Hencky-type strain measure. Comparisons of the results with experimental data on the one hand reveal reasonable results and on the other hand underline the necessity of further model enhancements.</p>},
  author       = {Bartel, T. and Menzel, A.},
  issn         = {0376-9429},
  keyword      = {Cyclic loading,NiTi wires,Self heating,Shape memory alloys},
  language     = {eng},
  number       = {2},
  pages        = {281--293},
  publisher    = {Springer},
  series       = {International Journal of Fracture},
  title        = {Modelling and simulation of cyclic thermomechanical behaviour of NiTi wires using a weak discontinuity approach},
  url          = {http://dx.doi.org/10.1007/s10704-016-0156-0},
  volume       = {202},
  year         = {2016},
}