부산대학교 도서관

The aim of this paper is to study the propagation of surface waves in a rotating fibre-reinforced viscoelastic media of higher order underthe influence of magnetic field. The general surface wave speeds derived to study the effects of rotation and magnetic field on surfacewaves. Particular cases for Stoneley, Love and Rayleigh waves are also discussed and dispersion relation for the waves has been deduced. The results obtained in this investigation are more general in the sense that some earlier published results are obtained from our result asspecial cases. For order zero our results are well agreement to fibre-reinforced materials. Also by neglecting the reinforced elastic parameters,the results reduce to well known isotropic medium. It is observed that in a rotating medium the surface waves are dispersive. Also magnetic effects play a significant roll. It is observed that Love wave remain unaffected in a rotating medium but remain under theinfluence of magnetic field. Rayleigh waves are affected by rotation and magnetic field whereas Stoneley waves are independent ofMaxwell stresses. It is also observed that, surface waves cannot propagate in a fast rotating medium or in the presence of magnetic fieldof high intensity. Numerical results for particular materials are given and illustrated graphically. The results indicate that the effect ofrotation and magnetic field are very pronounced.