Behaviour of Ferromagnetic Granular in Magnetic Field and Magnetic Characteristics of Compact by Particule Model.

Kotera, Hidetoshi; Onoyama, A.; Shima, Susumu

doi:10.2497/jjspm.42.645

Cited by 3 publications

(1 citation statement)

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“…We adopt a yield function for the Cosserat continuum for compressible material as (3) where is the relative density of the powder, is representative length for the rotation, is the Cosserat constant, and is deviatoric stress of symmetric part of the stress [6], [7]. If , the effect of the anti-symmetric shear stress becomes zero and the yield function is coincident with the conventional 0018-9464/00$10.00 © 2000 IEEE one [7].…”

Section: Magneto-cosserat Continuum Theorymentioning

confidence: 99%

A study of magnetic particles' behavior by magneto-Cosserat continuum theory

2000

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By implementing the magneto-Cosserat continuum theory in FEM scheme, it is possible to simulate magnetic alignment in powders with magnetic anisotropy during compaction in an applied magnetic field. We thereby analyze the relationship between the direction of magnetic field and compaction process, such as cross compaction and parallel compaction. The rotation of the axes is thus calculated at various conditions of applied magnetic field. In our previous study, Cosserat constant was given arbitrarily. The method to calculate the Cosserat constant is proposed and its effect on the rotation of the particles' easy axes is discussed. As a demonstration of the developed method, magnetic particles' alignment during compaction in an applied magnetic field is simulated. The calculated results are in good agreement with the experimental ones.

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