Читать книгу The Rheology Handbook - Thomas Mezger - Страница 201

Viscoelastic (VE) materials are always showing viscous and elastic behavior simultaneously. The viscous portion behaves according to the viscosity law which was presented in Chapter 2, and the elastic portion behaves according to the elasticity law which was explained in Chapter 4. Depending on their rheological behavior, VE liquids can be distinguished from VE solids. VE materials display a time-dependent, delayed response as well when a stress or a strain is applied as well as when it is removed.