中国物理B ›› 2017, Vol. 26 ›› Issue (7): 77502-077502.doi: 10.1088/1674-1056/26/7/077502

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Modified magnetomechancial model in the constant and low intensity magnetic field based on J–A theory

Qingyou Liu(刘清友), Xu Luo(罗旭), Haiyan Zhu(朱海燕), Jianxun Liu(刘建勋), Yiwei Han(韩一维)   

  1. 1 College of Mechatronic Engineering of Southwest Petroleum University, Chengdu 610500, China;
    2 Key Laboratory of Fluid and Power Machinery(Ministry of Education), Xihua University, Chengdu 600300, China;
    3 College of Petroleum Engineering of Southwest Petroleum University, Chengdu 610500, China
  • 收稿日期:2016-12-12 修回日期:2017-04-01 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Xu Luo E-mail:402585133@qq.com
  • 基金资助:
    Project supported by the Major Program of Sichuan Province Science and Technology Plan,China (Grant No.2015SZ0010) and the Scientific Research Foundation of Sichuan Province,China (Grant No.2014GZ0121).

Modified magnetomechancial model in the constant and low intensity magnetic field based on J–A theory

Qingyou Liu(刘清友)1,2, Xu Luo(罗旭)1, Haiyan Zhu(朱海燕)3, Jianxun Liu(刘建勋)1, Yiwei Han(韩一维)1   

  1. 1 College of Mechatronic Engineering of Southwest Petroleum University, Chengdu 610500, China;
    2 Key Laboratory of Fluid and Power Machinery(Ministry of Education), Xihua University, Chengdu 600300, China;
    3 College of Petroleum Engineering of Southwest Petroleum University, Chengdu 610500, China
  • Received:2016-12-12 Revised:2017-04-01 Online:2017-07-05 Published:2017-07-05
  • Contact: Xu Luo E-mail:402585133@qq.com
  • Supported by:
    Project supported by the Major Program of Sichuan Province Science and Technology Plan,China (Grant No.2015SZ0010) and the Scientific Research Foundation of Sichuan Province,China (Grant No.2014GZ0121).

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摘要： The existing magnetomechancial models cannot explain the different experimental phenomena when the ferromagnetic specimen is respectively subjected to tension and compression stress in the constant and low intensity magnetic field, especially in the compression case. To promote the development of magnetomechancial theory, the energy conservation equation, effective magnetic field equation, and anhysteretic magnetization equation of the original Jiles–Atherton (J–A) theory are elucidated and modified, an equation of the local equilibrium status is employed and the differential expression of the modified magnetomechancial model based on the modified J–A theory is established finally. The effect of stress and plastic deformation on the magnetic parameters is analyzed. An excellent agreement is achieved between the theoretic predictions by the present modified model and the previous experimental results. Comparing with the calculation results given by the existing models and experimental results, it is seen indeed that the modified magnetomechanical model can describe the different magnetization features during tension-release and compression-release processes much better, and is the only one which can accurately reflect the experimental observation that the magnetic induction intensity reverses to negative value with the increase of the compressive stress and applied field.

关键词: modified Jiles–, Atherton model, magnetomechanical effect, local equilibrium status

Abstract: The existing magnetomechancial models cannot explain the different experimental phenomena when the ferromagnetic specimen is respectively subjected to tension and compression stress in the constant and low intensity magnetic field, especially in the compression case. To promote the development of magnetomechancial theory, the energy conservation equation, effective magnetic field equation, and anhysteretic magnetization equation of the original Jiles–Atherton (J–A) theory are elucidated and modified, an equation of the local equilibrium status is employed and the differential expression of the modified magnetomechancial model based on the modified J–A theory is established finally. The effect of stress and plastic deformation on the magnetic parameters is analyzed. An excellent agreement is achieved between the theoretic predictions by the present modified model and the previous experimental results. Comparing with the calculation results given by the existing models and experimental results, it is seen indeed that the modified magnetomechanical model can describe the different magnetization features during tension-release and compression-release processes much better, and is the only one which can accurately reflect the experimental observation that the magnetic induction intensity reverses to negative value with the increase of the compressive stress and applied field.

Key words: modified Jiles–Atherton model, magnetomechanical effect, local equilibrium status

中图分类号:  (Magnetomechanical effects, magnetostriction)

  • 75.80.+q
62.20.F- (Deformation and plasticity) 75.30.Cr (Saturation moments and magnetic susceptibilities) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)