Constitutive equations of rheological materials: towards a thermodynamic unified approach

✍ Scribed by P.C. Dauby; G. Lebon

• Book ID: 103925127
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 328 KB
• Volume: 3
• Category: Article
• ISSN: 0893-9659
• DOI: 10.1016/0893-9659(90)90044-c

✦ Synopsis

Extended Irreversible Thermodynamics is shown to be a very appropriate theoretical frame for the description of rheological materials. By splitting the total viscous pressure tensor into two independent contributions due to the solvent and the polymer and assuming that the polymer contribution is a function of the conformation tensor, one generates general non-linear constitutive equations. The Giesekus, Jeffreys and Oldroyd &on&ants models are recovered as particular cases. The results are also compared with another EIT derivation of Oldroyd's model.