ISSN:
1435-1528
Keywords:
Free damped oscillations
;
linear viscoelasticity
;
forced oscillations
;
dynamic rheometric functions
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Abstract This work shows that the complex dynamic viscosity η* (ω) can be evaluated from experimental data of free damped oscillations (FDO) when upper and lower angular displacements measured in a plate-plate geometry are analyzed by Fourier series. We deduce the equation required to evaluate experimentally the dynamic functions of linear viscoelastic materials in FDO. Two loss tangents can be defined in FDO, which are not necessarily equal to tan δ(ω) of the forced oscillation test.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00396023
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