Experimental Results and Model of Stress-Field-Induced Strain in NiMnGa Single Crystal

Yan Chen; Yu Ping Zhu

doi:10.4028/www.scientific.net/AMM.275-277.72

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Experimental Results and Model of...

Experimental Results and Model of Stress-Field-Induced Strain in NiMnGa Single Crystal

Abstract:

Ferromagnetic shape memory alloy (FSMA) is a new class of intelligent material, and has attracted the attention of researchers. This paper studied uniaxial compressive experiment along three different directions of single crystal Ni2MnGa. The experiment indicates that single crystal FSMA presents obvious anisotropy. Based on the experimental data, the mechanical constitutive model of single crystal FSMA under stress was established by using the theory of micromechanics and the thermodynamic principle. With the model, the mechanical behaviors of the material obtain a good description. The model provides theoretical evidence for the study on the mechanical behaviors of the material.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

72-76

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.72

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Online since:

January 2013

Authors:

Yan Chen, Yu Ping Zhu

Keywords:

Constitutive Model, Ferromagnetic Shape Memory Alloys (FSMAs), Stress-Strain Curve

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