Abstract
Abstract The evolution of viscoelastic composite materials and their practical applications, necessitates the accurate modeling of their viscoelastic characteristics, for which the correspondence principle and energy method are widely used. The energy method for viscoelastic composite materials assumes the zero phase difference among the components of strain at a point, which may affect the accurate prediction of loss factor for high damping composite materials where the phase differences are significant. This work is to present re-formulation of energy method considering these phase differences and to extend it for the computation of effective properties of viscoelastic composites. The computed properties using Finite element method (FEM) with present formulation are observed to be more accurate than the earlier energy formulation with respect to correspondence principle.
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