Measurement of two-dimensional magnetostriction of a non-oriented electrical steel sheet under shear stress

Issue title: 13th International Workshop on 1&2 Dimensional Magnetic Measurement and Testing (2014)

Subtitle:

Guest editors: Carlo Appino, Cinzia Beatrice, Fausto Fiorillo and Carlo Ragusa

Article type: Research Article

Authors: Kai, Yuichiro^{a; *} | Enokizono, Masato^{a; b}

Affiliations: [a] Faculty of Engineering, Oita University, Dannoharu, Oita, Japan | [b] Vector Magnetic Characteristic Technical Laboratory, Usa-shi, Oita, Japan

Correspondence: [*] Corresponding author: Yuichiro Kai, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan. Tel./Fax: +81 0 97 554 8571; E-mail:[email protected]

Abstract: The magnetic properties of electrical steel sheet used in motor cores are influenced by mechanical stress due to the inverse effect of the magnetostriction. Therefore, it is necessary to measure the magnetostriction of the electrical steel sheet in order to clarify the relationships between the stress and magnetic properties. The present paper investigates the influence of shear stress on the two-dimensional magnetostriction of a non-oriented electrical steel sheet. The principal magnetostriction in the two-dimensional magnetostriction of a non-oriented electrical steel sheet is measured while varying the shear stress. The obtained results revealed that the amplitude of the principal magnetostriction along the 45° and 135° directions varied significantly when the shear stress was applied.

Keywords: Non-oriented electrical steel sheet, vector magnetic property, shear stress, two-dimensional magnetostriction

DOI: 10.3233/JAE-151993

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 48, no. 2-3, pp. 233-238, 2015