title: Effects of coupled interfacial imperfections on SH wave propagation in a layered multiferroic cylinder.
abstract: Although SH-wave propagation in layered multiferroic composites with imperfect interfaces has been widely investigated, the effects of interfacial imperfection couplings still remain as an un-tackled problem deserving studying. The present paper considered the SH-wave propagation in a bi-layered multiferroic cylinder that has inter-coupled magnetic, electric and mechanical imperfections on the interface. The dispersion equations of SH waves are derived and numerically solved. Parametric studies are conducted on the numerical results to reveal the effects of interfacial imperfections and their inter-couplings on phase velocity. Discussion here yields four main conclusions, which can serve as guidelines for the optimal design of multiferroic composites and the related smart devices.
authors.affiliation: Beijing Advanced Innovation Center for Imaging Technology, Capital Normal University, Beijing 100048, PR China; Department of Mechanical Engineering, Academy of Armored Force Engineering, Beijing 100072, PR China. Electronic address: LYDbeijing@163.com.
authors.forename: Yong-Dong
authors.initials: YD
authors.lastname: Li
authors.affiliation: Department of Mechanical Engineering, Academy of Armored Force Engineering, Beijing 100072, PR China.
authors.forename: Tao
authors.initials: T
authors.lastname: Xiong
authors.affiliation: Beijing Advanced Innovation Center for Imaging Technology, Capital Normal University, Beijing 100048, PR China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Guan
keywords: Imperfect interface; Interfacial imperfection coupling; Linear spring model; Piezomagnetic/piezoelectric materials; SH waves