Technical note: correcting for shear strain in an oscillatory squeeze flow rheometer

Konigsberg, David, Nicholson, Timothy M., Halley, Peter J. and Ahn, Kyung Hyun (2014) Technical note: correcting for shear strain in an oscillatory squeeze flow rheometer. Rheologica Acta, 53 2: 103-107. doi:10.1007/s00397-013-0745-z


Author Konigsberg, David
Nicholson, Timothy M.
Halley, Peter J.
Ahn, Kyung Hyun
Title Technical note: correcting for shear strain in an oscillatory squeeze flow rheometer
Journal name Rheologica Acta   Check publisher's open access policy
ISSN 0035-4511
1435-1528
Publication date 2014
Year available 2013
Sub-type Article (original research)
DOI 10.1007/s00397-013-0745-z
Open Access Status
Volume 53
Issue 2
Start page 103
End page 107
Total pages 5
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2014
Language eng
Abstract Currently, rheologists working in the field of oscillatory squeeze flow use extensional strain to characterize the deformations. Due to the shear-dominated flow observed in low Trouton ratio fluids undergoing squeeze flow, it is proposed that an alternate geometry-dependent definition for shear strain in squeeze flow be used instead. Through the use of finite element modelling, it has been shown that this geometry-dependent strain definition allows for better comparison of measurements between both squeeze flow rheometers of different geometric configurations and rotational rheometers. This idea was then explored through laboratory experiments, further supporting this hypothesis. While this definition of strain will only hold true within the bounds of a material’s linear viscoelastic regime, it will help to determine where this boundary is, and thus allow for more accurate material characterization. This type of relationship will become increasingly important with the growing use of squeeze flow rheometers for large-amplitude oscillatory squeezing trials.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 10 November 2013.

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Thu, 16 Jan 2014, 11:42:24 EST by Cathy Fouhy on behalf of Aust Institute for Bioengineering & Nanotechnology