Dissipation Function in Thermomechanical Phenomena of Viscoelastic Solids

摘要

An explicit form of the dissipation function associated with thermomechanical phenomena of viscoelastic solids is derived. This function is expressed in terms of the observable quantities such as stress rates, strain rates, and their second time derivatives, etc. The formulation is based on the theory of irreversible thermodynamics of deformable bodies developed by Biot and generalized by Ziegler and Schapery. The proposed dissipation function can be used conveniently for both experimental and theoretical purposes. (Author)