ISSN:
1435-1528
Keywords:
Key words Constitutive equation
;
fractional derivative
;
Jeffreys model
;
Sesbania gel
;
xanthan gum
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Abstract Based on the classic linear viscoelastic Jeffreys model, a modified Jeffreys model is suggested. The corresponding five-parameter equation with fractional derivatives of different orders of the stress and rate of strain is stated and the characteristic material functions of the linear viscoelasticity theory, such as the dynamic moduli, are derived. The comparison between the measured dynamic moduli of Sesbania gel and xanthan gum and the theoretical predictions of the proposed phenomenological model shows an excellent agreement.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003970050138
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