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Temperature Harmonic Analysis Of Austenitic Niti Under Dynamic Cyclic Loading

Pinto, V; Di Leonardo, S; Galeazzo, M; Burriesci, G; Pitarresi, G; (2024) Temperature Harmonic Analysis Of Austenitic Niti Under Dynamic Cyclic Loading. In: Proceedings of the 10th World Congress on New Technologies (NewTech'24). (pp. ICBB 112). Avestia Publishing: Barcelona, Spain. Green open access

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Abstract

– Due to their super-elastic behaviour, NiTi alloys operating above the phase transformation temperature are employed in several high-risk medical devices. Hence, the most advanced approaches shall be employed for their structural characterisation. This work investigates the thermo-mechanical response of NiTi alloys when analysed with infrared thermography. A nitinol strip was subjected to a dynamic sinusoidal loading under displacement control, with increasing average and amplitude ranges, within the austenite elastic state. Analysis of the harmonic content of the temperature signal in the frequency domain was carried out and compared with the predictions of the higher-order thermoelastic effect theory. Results indicate that, although the modulation of temperature signal is related to the sinusoidal load signal, the alloy response is different from traditional materials.

Type: Proceedings paper
Title: Temperature Harmonic Analysis Of Austenitic Niti Under Dynamic Cyclic Loading
Event: 10th World Congress on New Technologies (NewTech'24)
Dates: 25 Aug 2024 - 27 Aug 2024
Open access status: An open access version is available from UCL Discovery
DOI: 10.11159/icbb24.112
Publisher version: http://dx.doi.org/10.11159/icbb24.112
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10199812
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