Experimental analysis of the quasi-static and dynamic torsional behaviour of shape memory alloys

Olivier Doaré 1 Alessandro Sbarra 1 Cyril Touzé 1 Mohamed Ould Moussa 2 Ziad Moumni 2
1 UME - Unité de Mécanique
2 MS - Matériaux et Structures
Abstract : This paper investigates experimentally the quasi-static and dynamic torsional behaviour of shape memory alloys wires under cyclic loading. A specifically designed torsional pendulum made of a Ni–Ti wire is described. Results on the quasi-static behaviour of the wire obtained using this setup are presented, giving an overall view of the damping capacity of the material as function of the amplitude of the loading (imposed torsional angle), the frequency and the temperature. The dynamical behaviour is then presented through measured frequency response function between forcing angle at the top of the pendulum and the difference between top and bottom rotation angles in the vicinity of the first eigenfrequency of the wire, i.e. in the range [0.3 Hz, 1 Hz]. The softening-type non-linearity and its subsequent jump phenomenon, predicted theorically by the decrease of the effective stiffness when martensite transformation starts is clearly evidenced and analysed.
Document type :
Journal articles
Complete list of metadatas

Cited literature [31 references]  Display  Hide  Download
https://hal-ensta-paris.archives-ouvertes.fr//hal-01134805
Contributor : Cyril Touzé <>
Submitted on : Saturday, March 12, 2016 - 11:31:04 AM
Last modification on : Wednesday, July 3, 2019 - 10:48:05 AM
Long-term archiving on : Sunday, November 13, 2016 - 4:22:54 PM

File

2011-IJSS_doare_etal_SMAexpeC....
Files produced by the author(s)

Identifiers

Collections

ENSTA | ENSTA_UME

Citation

Olivier Doaré, Alessandro Sbarra, Cyril Touzé, Mohamed Ould Moussa, Ziad Moumni. Experimental analysis of the quasi-static and dynamic torsional behaviour of shape memory alloys. International Journal of Solids and Structures, Elsevier, 2012, 49 (1), pp.32-42. ⟨10.1016/j.ijsolstr.2011.09.009⟩. ⟨hal-01134805⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

97

Files downloads

133

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD