A new hysteretic nonlinear constitutive model of Ni-Mn-Ga magnetic shape memory alloy material

被引：0
作者：
Zhu Z. [1 ,2 ]
Guo C. [1 ]
Wang H. [1 ]
Xu J. [2 ]
机构：
[1] Department of Mechanics, Tianjin University, Tianjin
[2] Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control, Tianjin
来源：
Journal of Computational and Theoretical Nanoscience | 2016年 / 13卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Constitutive model; Hysteretic loop; Magnetic shape memory alloy;
D O I：
10.1166/jctn.2016.5466
中图分类号：
学科分类号：
摘要：
A new hysteretic nonlinear constitutive model of Ni-Mn-Ga magnetic shape memory alloy is developed in this paper. Nonlinear differential terms are introduced to explain the hysteretic characteristics of Ni-Mn-Ga MSMA material, and the partial least-square regression method is applied to obtain the relationship among the strain, stress and magnetic field intensity. The results of principal component analysis show that all the terms in the constitutive model are significant, and the results of forecast test show that the new constitutive model can describe the hysteretic characteristics of Ni-Mn-Ga MSMA material with different magnetic field intensity accurately. The new constitutive model has concise form, and is easy to be applied in engineering, which is helpful for the dynamic analysis of MSMA structure. Copyright © 2016 American Scientific Publishers All rights reserved.
引用
收藏
页码：5655 / 5659
页数：4
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