SOLID MECHANICS UNDER MAGNETIC FIELD
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概要
- 論文の詳細を見る
This paper reviews the basis of mechanics for deformable electromagnetic materials, their typical behaviors under the magnetic field and applications utilizing coupled phenomena of magnetism and mechanics. Electromagnetic field equations and the conservation laws for moving deformable materials are laid down, on the basis of continuum theory of electromagnetic materials. If such a material is under the magnetic field, it is subjected to several kinds of magnetic forces. Further if the material is electrically conductive and the magnetic field is changing in time, there may also exist the eddy current, the induced magnetic field, the Lorentz force, etc. In the case of ferromagnetic materials, can not be neglected the magnetic nonlinearity, the hysteresis and the magnetomechanical effects such as magnetostriction and stress-dependence of magnetization. In many cases, the magnetic field is static, periodically changing in time, or applied to the demagnetized material. In these cases, the equilibrium theory of deformable magnetic materials can be applied to each magnetization process in which the magnetic field is changing in one-direction including the case of rotating magnetic fields. Mechanical properties under such magnetic fields and the magnetization properties under the stress are discussed. As related topics to the above phenomena, introduced are magnetoelastic problems, nondestructive evaluations of material properties and deformation, and applications of magnetic forces.
- 社団法人日本材料学会の論文
- 1999-03-15
著者
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Matsumoto E
Department Of Energy Conversion Science Kyoto University
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Matsumoto Eiji
Department Of Energy Conversion Science Kyoto University
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