Efficient magnetic hysteresis model for field and stress application in magnetostrictive Galfenol

被引:80
作者
Evans, P. G. [1 ]
Dapino, M. J. [1 ]
机构
[1] Ohio State Univ, Dept Mech Engn, Columbus, OH 43210 USA
关键词
magnetic anisotropy; magnetic fields; magnetic hysteresis; magnetostriction; organic compounds; FERROMAGNETIC HYSTERESIS; FE-GA; ALLOYS; ANISOTROPY; BEHAVIOR;
D O I
10.1063/1.3318494
中图分类号
O59 [应用物理学];
学科分类号
摘要
We present a discrete energy-averaged model for the nonlinear and hysteretic relation of magnetization and strain to magnetic field and stress. Analytic expressions from energy minimization describe three-dimensional rotations of domains about easy crystal directions in regions where domain rotation is the dominant process and provide a means for direct calculation of magnetic anisotropy constants. The anhysteretic material behavior due to the combined effect of domain rotation and domain wall motion is described with an energy weighted average while the hysteretic material behavior is described with an evolution equation for the domain volume fractions. As a result of using a finite set of locally defined energy expressions rather than a single globally defined expression, the model is 100 times faster than previous energy weighting models and is accurate for materials with any magnetocrystalline anisotropy. The model is used to interpret magnetization and strain measurements of << 100 >> oriented Fe79.1Ga20.9 and Fe81.5Ga18.5 as well as << 110 >> oriented Fe81.6Ga18.4.
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页数:11
相关论文
共 18 条
[1]   An incremental theory of magneto-elastic hysteresis in pseudo-cubic ferro-magnetostrictive alloys [J].
Armstrong, WD .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 263 (1-2) :208-218
[2]   Magnetization and magnetostriction processes in Tb-(0.27-0.30)Dy-(0.73-0.70)Fe-(1.9-2.0) [J].
Armstrong, WD .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (05) :2321-2326
[3]   Sensing behavior of varied stoichiometry single crystal Fe-Ga [J].
Atulasimha, J ;
Flatau, AB ;
Kellogg, RA .
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 2006, 17 (02) :97-105
[4]   Characterization and energy-based model of the magnetomechanical behavior of polycrystalline iron-gallium alloys [J].
Atulasimha, Jayasimha ;
Flatau, Alison B. ;
Summers, Eric .
SMART MATERIALS & STRUCTURES, 2007, 16 (04) :1265-1276
[5]   Comprehensive three dimensional hysteretic magnetomechanical model and its validation with experimental ⟨110⟩ single-crystal iron-gallium behavior [J].
Atulasimha, Jayasimha ;
Akhras, George ;
Flatau, Alison B. .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)
[6]  
Chikazumi, 1964, PHYS MAGNETISM
[7]  
DELACHEISSERIE EDT, 1993, MAGNETOSTRICTION
[8]   Efficient model for field-induced magnetization and magnetostriction of Galfenol [J].
Evans, P. G. ;
Dapino, M. J. .
JOURNAL OF APPLIED PHYSICS, 2009, 105 (11)
[9]  
Evans P. G., 2009, THESIS OHIO STATE U
[10]   State-space constitutive model for magnetization and magnetostriction of Galfenol alloys [J].
Evans, Phillip G. ;
Dapino, Marcelo J. .
IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (07) :1711-1720