05-01-2016, 04:29 PM
Viscous Deformation
Plastic deformations in noncrystalline solids (as well as liquids) occurs by a viscous flow mechanism. Usually attributed to fluids.But solids may also behave like viscous materials under high temperature and pressure. Viscous materials deform steadily under stress.
Deformations are time dependent.
Based on the abovementioned deformation characteristics, several material idealizations could be made.
Such as:
Elastic Materials
Plastic Materials
Elastoplastic Materials
Viscoelastic Materials