Scattering of shear horizontal waves by the piezomagnetic material cylinder embedded in an elastic medium

Scattering behaviors of shear horizontal (SH) waves by the piezomagnetic cylinder embedded in an infinite elastic medium are investigated. The effective material constants of the piezomagnetic cylinder are changed with the magnetic field and compressive stress. By applying the method of wave function expansion, the governing differential equations of the scattered SH waves are solved and the mechanical displacement, dynamic stress, magnetic potential, and magnetic induction strength affected by the magnetic field and compressive stress are obtained. It is found that the mechanical displacement increases as the magnetic field strength increases while this tendency is reversed when applying compressive stress. The circumferential dynamic stress, magnetic potential, and magnetic induction strength increase as the magnetic field strength increases, respectively. But, the variation of the radial dynamic stress with the magnetic field is complex. The findings presented in this article are useful for designing magneto-elastic acoustic wave devices with high performance.