Předmět Applied Rheology (FCH-MAA_AR)

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Materiál	Typ	Datum	Počet stažení

Cíl

Basic knowledge of rheology and rheometry of liquids and their practical utilization.

Osnova

Rheology. Goals and methods. Mechanical behavior and properties of materials. Applicationas of rheological properties of suspension and polymeric liquids in technology.Basic quantitative notions in continuum mechanics. Stress and deformation. Simple shear and simple shear flow. Viscosity and elasticity. Newtonian liquids. Hookean materials. Necessity of tensorial description of the kinematics and dynamics of spacial deformation. Deformation gradient and velocity gradient. Stress tensor, isotropic pressure. Rheological constitutive equations. Mathematical models of flow.Non-linear viscous behavior. Plasticity, viscoplasticity, non-Newtonian viscosity, thixotropy. Linear viscoelasticity. Dynamics of linear autonomous systems. Relaxation, creep, complex viscosity. Maxwell and Kelvin model. Viscometry and rheometry. Theory of measuring the shear viscosity function for basic types of viscometers. Viscometric normal stress differences. Instrumentation, calibration, primary data treatment. Non-linear viscoelasticity. Weissenberg effect and centripetal flow, die swell. Elongation viscosity. Polymer solutions. Limiting viscosity number vs. mola mass, Mark-Houwink equation, conformational characteristics of macromolecules from viscosity measurements.Suspensions and emulsions.

Literatura

BARNES, H.A., HUTTON, J.F., WALTERS, K. An Introduction to Rheology. Amsterdam: Elsevier, 1989.MORISSON, F.A. Understanding Rheology. New York: Oxford University Press, 2001.

Požadavky

basic knowlefge of mathematics and physical chemistry

Garant

prof. Ing. Martina Klučáková, Ph.D.