Structural Engineering and Mechanics

Volume 58, Number 1, 2016, pages 181-197

DOI: 10.12989/sem.2016.58.1.181

Rotational effect on Rayleigh, Love and Stoneley waves in non-homogeneous fibre-reinforced anisotropic general viscoelastic media of higher order

S.M. Abo-Dahab, A.M. Abd-Alla and Aftab Khan

Abstract

In this paper, we investigated the propagation of surface waves in a nonhomogeneous rotating fibre-reinforced viscoelastic anisotropic media of higher order of nth order including time rate of strain. The general surface wave speed is derived to study the effect of rotation on surface waves. Particular cases for Stoneley, Love and Rayleigh waves are discussed. The results obtained in this investigation are more general in the sense that some earlier published results are obtained from our result as special cases. Also results for homogeneous media can be deduced from this investigation. For order zero our results are well agreed to fibre-reinforced materials. Also by neglecting the reinforced elastic parameters, the results reduce to well known isotropic medium. It is also observed that, surface waves cannot propagate in a fast rotating medium. Comparison was made with the results obtained in the presence and absence of rotation and parameters for fibre-reinforced of the material medium Numerical results are given and illustrated graphically. The results indicate that the effect of rotation and parameters for fibre-reinforced of the material are very pronounced.

Key Words

fibre-reinforced; viscoelastic; surface waves; rotation; anisotropic; nonhomogeneous

Address

S.M. Abo-Dahab: Mathematics Department, Faculty of Science, Taif University 888, Saudi Arabia; Mathematics Department, Faculty of Science, SVU, Qena 83523, Egypt A.M. Abd-Alla: Mathematics Department, Faculty of Science, Taif University 888, Saudi Arabia; Mathematics Department, Faculty of Science, Sohag University, Egypt Aftab Khan: Department of Mathematics, COMSATS, Institute of Information, Park Road, Chakshahzad, Islamabad, Pakistan