Experimental analysis of rate dependence of NiTi alloy under shear loading

Abstract : Shape memory alloys (SMAs) as an optimal design solution to many engineering problems, due to their ability to exhibit fully recoverable deformations under substantial loads. While many uniaxial tension experiments of shape memory alloys have been published in the literature, relatively rare experimental studies address their behaviour in shear test. In this study, the simple shear test of NiTi alloy under quasi-static loading (7.7×10-4 mm/s ? 7.7 mm/s) and dynamic loading (0.8 m/s) were conducted. In all the experiments, the isothermal, global, mechanical responses were measured, meanwhile the digital image correlation (DIC) was used to measure the full field quantitative strain maps and observe the evolution of the phase transformation. The results show that the deformation behaviour of NiTi alloy under quasi-static and dynamic loading are quite different.
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Conference papers
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https://hal.archives-ouvertes.fr/hal-01548303
Contributor : Han Zhao <>
Submitted on : Tuesday, June 27, 2017 - 2:01:53 PM
Last modification on : Tuesday, May 14, 2019 - 10:28:45 AM

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  • HAL Id : hal-01548303, version 1

Citation

He Huang, Han Zhao. Experimental analysis of rate dependence of NiTi alloy under shear loading. 22ème Congrès français de Mécanique, Aug 2015, Lyon, France. ⟨hal-01548303⟩

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