A Free Energy Functional for Thermorheologically Simple Materials

摘要

A systematic procedure developed by Coleman for establishing thermodynamically consistent constitutive equations is used to develop the thermomechanical constitutive equations for thermorheologically simple viscoelastic materials. The usefulness of the procedure is demonstrated and the exact form of the equations discussed and compared with results obtained by considering phenomenological models. Results from both approaches are shown to be essentially equivalent. (Author)