Analysis of nonlinear magnetic properties of soft magnetic composite using 2D and 3D discrete element methods

Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019

Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji

Article type: Research Article

Authors: Sato, Hayaho^a; | Maruo, Akito^a | Igarashi, Hajime^a

Affiliations: [a] Guraduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan

Correspondence: [*] Corresponding author: Hayaho Sato, Guraduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan. E-mail: hayaho_sato@em.ist.hokudai.ac.jp

Abstract: This paper presents the three-dimensional modeling of soft magnetic composite (SMC) based on the discrete element method. The proposed method makes it possible to take the possible contact among the magnetic particles in SMC as well as the distributed particle size into consideration. Based on this modeling, the macroscopic B-H characteristics is computed with the finite element method considering magnetic saturation. It is shown that the three-dimensional model of SMC can have larger initial permeability in comparison with the two-dimensional model even if they have the same filling factor.

Keywords: Discrete element method, homogenization method, soft magnetic composite

DOI: 10.3233/JAE-209355

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 483-492, 2020