Accession Number : AD0720291

Title :   A Free Energy Functional for Thermorheologically Simple Materials,

Corporate Author : ALABAMA UNIV HUNTSVILLE DEPT OF ENGINEERING AND MECHANICS

Personal Author(s) : Cost,Thomas L.

Report Date : 11 MAR 1971

Pagination or Media Count : 30

Abstract : 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)

Descriptors :   (*VISCOELASTICITY, THERMODYNAMICS), POLYMERS, FREE ENERGY, RHEOLOGY, ENTROPY, STRESSES, STRAIN(MECHANICS), PARTIAL DIFFERENTIAL EQUATIONS

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE