Effects of electromagnetic fields on the contact of magneto-electro-elastic materials. (1st June 2022)

• Record Type: Journal Article
• Authors: Sui, Yijin; Wang, Wenzhong; Zhang, Haibo
• Is Part Of: International journal of mechanical sciences. Volume 223(2022)
• Publication Date: 2022-06-01
• Subjects: Frictional contact -- Magneto-electro-elastic materials -- Electromagnetic fields -- Semi-analytical method; Mechanical engineering -- Periodicals; Génie mécanique -- Périodiques; Mechanical engineering; Maschinenbau; Mechanik; Zeitschrift; Periodicals; 621.05
• DOI: 10.1016/j.ijmecsci.2022.107283
• Languages: English
• ISSNs: 0020-7403

Abstract

Highlights: The semi-analytical method is used for 3D magneto-electro-elastic contact problem. Electric field affects contact behavior more significantly than magnetic field. Electric field can control magnetic field via strain transfer but not vice versa. Empirical equations for electric and magnetic potential are derived. Abstract: The three-dimensional (3D) frictional contact between a magneto-electro-elastic (MEE) material and a perfectly conducting rigid spherical punch under electromagnetic fields is investigated. This multiphysical contact problem is solved by the semi-analytical method (SAM), in which the frequency response functions (FRFs) with respect to unit mechanical, electric and magnetic loads are derived and converted into influence coefficients (ICs). The proposed model is validated with both analytical solutions and the finite element method (FEM). The effects of electromagnetic fields on contact performance and electromagnetic output are studied, and two types of electric and magnetic loads are considered by applying the surface density (closed circuit) or total amount (open circuit) of electric and magnetic charges. Parametric studies are conducted, and dimensionless curve-fitting equations are proposed to predict the average electric and magnetic potentials as functions of electric and magnetic loads, which are validated for arbitrary mechanical loads and radii of spherical punches. Graphical abstract: Image, graphical abstract