Slow relaxation of viscoelastic oil modules

The viscoelastic modules of complex organic media evolve slowly. Studying the dependence of a complex shear modulus on strain amplitude reveals logarithmic growth over time of the nonlinearity parameter of a raw oil sample. The linear reduction in the complex shear modulus upon an increase in the am...

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Veröffentlicht in:	Bulletin of the Russian Academy of Sciences. Physics 2015-10, Vol.79 (10), p.1296-1300
Hauptverfasser:	Grishaev, V. V., Esipov, I. B., Mironov, M. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Hadrons Heavy Ions Modules Nuclear Physics Physics Physics and Astronomy Proceedings of the First National Conference on Acoustics Shear modulus Viscoelasticity
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The viscoelastic modules of complex organic media evolve slowly. Studying the dependence of a complex shear modulus on strain amplitude reveals logarithmic growth over time of the nonlinearity parameter of a raw oil sample. The linear reduction in the complex shear modulus upon an increase in the amplitude of shear perturbations is confirmed experimentally; this is possible when there is a linear dependence between the viscoelastic parameters of a sample and the strain modulus.
ISSN:	1062-8738 1934-9432
DOI:	10.3103/S1062873815100111