Effect of the thermomechanical coupling on fatigue crack propagation in NiTi Shape Memory Alloys

Yajun You; Yahui Zhang; Ziad Moumni; Gunay Anlas

Effect of the thermomechanical coupling on fatigue crack propagation in NiTi Shape Memory Alloys

Yajun You
, Yahui Zhang
, Ziad Moumni
, Gunay Anlas

Research output: Contribution to conference › Paper › peer-review

Abstract

The effect of thermo-mechanical coupling on fatigue crack propagation in a NiTi pseudo-elastic shape memory alloy (SMA) is investigated. Single Edge Crack (SEC) specimens are loaded at different frequencies to see the effect of frequency on mechanical response of the edge cracked NiTi plate. The crack length and the temperature at the crack tip are measured using an Infrared Thermography (IR) camera. The evolutions of maximum temperature at the crack tip and the change in crack length with respect to number of loading cycles at different loading frequencies are plotted. The results show that the crack growth rate is significantly frequency-dependent, and the growth rate decreases with increasing frequency.

Original language	English
Pages	1075-1076
Number of pages	2
Publication status	Published - 1 Jan 2017
Event	14th International Conference on Fracture, ICF 2017 - Rhodes, Greece Duration: 18 Jun 2017 → 20 Jun 2017

Conference

Conference	14th International Conference on Fracture, ICF 2017
Country/Territory	Greece
City	Rhodes
Period	18/06/17 → 20/06/17

Cite this

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title = "Effect of the thermomechanical coupling on fatigue crack propagation in NiTi Shape Memory Alloys",

abstract = "The effect of thermo-mechanical coupling on fatigue crack propagation in a NiTi pseudo-elastic shape memory alloy (SMA) is investigated. Single Edge Crack (SEC) specimens are loaded at different frequencies to see the effect of frequency on mechanical response of the edge cracked NiTi plate. The crack length and the temperature at the crack tip are measured using an Infrared Thermography (IR) camera. The evolutions of maximum temperature at the crack tip and the change in crack length with respect to number of loading cycles at different loading frequencies are plotted. The results show that the crack growth rate is significantly frequency-dependent, and the growth rate decreases with increasing frequency.",

author = "Yajun You and Yahui Zhang and Ziad Moumni and Gunay Anlas",

note = "Publisher Copyright: {\textcopyright} 2017 Chinese Society of Theoretical and Applied Mechanics. All Rights Reserved.; 14th International Conference on Fracture, ICF 2017 ; Conference date: 18-06-2017 Through 20-06-2017",

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TY - CONF

T1 - Effect of the thermomechanical coupling on fatigue crack propagation in NiTi Shape Memory Alloys

AU - You, Yajun

AU - Zhang, Yahui

AU - Moumni, Ziad

AU - Anlas, Gunay

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The effect of thermo-mechanical coupling on fatigue crack propagation in a NiTi pseudo-elastic shape memory alloy (SMA) is investigated. Single Edge Crack (SEC) specimens are loaded at different frequencies to see the effect of frequency on mechanical response of the edge cracked NiTi plate. The crack length and the temperature at the crack tip are measured using an Infrared Thermography (IR) camera. The evolutions of maximum temperature at the crack tip and the change in crack length with respect to number of loading cycles at different loading frequencies are plotted. The results show that the crack growth rate is significantly frequency-dependent, and the growth rate decreases with increasing frequency.

AB - The effect of thermo-mechanical coupling on fatigue crack propagation in a NiTi pseudo-elastic shape memory alloy (SMA) is investigated. Single Edge Crack (SEC) specimens are loaded at different frequencies to see the effect of frequency on mechanical response of the edge cracked NiTi plate. The crack length and the temperature at the crack tip are measured using an Infrared Thermography (IR) camera. The evolutions of maximum temperature at the crack tip and the change in crack length with respect to number of loading cycles at different loading frequencies are plotted. The results show that the crack growth rate is significantly frequency-dependent, and the growth rate decreases with increasing frequency.

UR - https://www.scopus.com/pages/publications/85066052937

M3 - Paper

AN - SCOPUS:85066052937

SP - 1075

EP - 1076

T2 - 14th International Conference on Fracture, ICF 2017

Y2 - 18 June 2017 through 20 June 2017

ER -

Effect of the thermomechanical coupling on fatigue crack propagation in NiTi Shape Memory Alloys

Abstract

Conference

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