R Kakar - Principal, DIPS Polytechnic College, Hoshiarpur
K Kaur - Faculty of Science, BMSCTE, Muktsar
K.C Gupta - Faculty of Science, BMSCTE, Muktsar

The purpose of this paper is to analysis the viscoelastic models under dynamic loading. A five-parameter model is chosen for study exhibits elastic, viscous, and retarded elastic response to shearing stress. The viscoelastic specimen is chosen which closely approximates the actual behavior of a polymer. The module of elasticity and viscosity coefficients are assumed to be space dependent i.e. functions of  in non-homogeneous case and stress-strain are harmonic functions of time  The expression for relaxation time for five parameter viscoelastic model is obtained by using constitutive equation. The dispersion equation is obtained by using Ray techniques. The model is justified with the help of cyclic loading for maxima or minima.

Shear waves, Viscoelastic media, Asymptotic method, dynamic loading