i-Rheo: Measuring the materials' linear viscoelastic properties 'in a step'!

Tassieri, M. , Laurati, M., Curtis, D. J., Auhl, D. W., Coppola, S., Scalfati, A., Hawkins, K., Williams, P. R. and Cooper, J. M. (2016) i-Rheo: Measuring the materials' linear viscoelastic properties 'in a step'! Journal of Rheology, 60(4), pp. 649-660. (doi:10.1122/1.4953443)

[img]
Preview
Text
118742.pdf - Published Version
Available under License Creative Commons Attribution.

2MB

Abstract

We present a simple new analytical method for educing the materials' linear viscoelastic properties, over the widest range of experimentally accessible frequencies, from a simple step-strain measurement, without the need of preconceived models nor the idealization of real measurements. This is achieved by evaluating the Fourier transforms of raw experimental data describing both the time-dependent stress and strain functions. The novel method has been implemented into an open access executable “i-Rheo,” enabling its use to a broad scientific community. The effectiveness of the new rheological tool has been corroborated by direct comparison with conventional linear oscillatory measurements for a series of complex materials as diverse as a monodisperse linear polymer melt, a bimodal blend of linear polymer melts, an industrial styrene-butadiene rubber, an aqueous gelatin solution at the gel point and a highly concentrated suspension of colloidal particles. The broadband nature of the new method and its general validity open the route to a deeper understanding of the material's rheological behavior in a variety of systems

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Tassieri, Dr Manlio and Cooper, Professor Jonathan
Authors: Tassieri, M., Laurati, M., Curtis, D. J., Auhl, D. W., Coppola, S., Scalfati, A., Hawkins, K., Williams, P. R., and Cooper, J. M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Journal of Rheology
Publisher:American Institute of Physics
ISSN:0148-6055
ISSN (Online):1520-8516
Published Online:14 June 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Journal of Rheology 60(4):649-660
Publisher Policy:Reproduced under a Creative Commons License

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
534472Rheology at the Microscale: New Tools for Bio-analysisManlio TassieriEngineering & Physical Sciences Research Council (EPSRC)10216/101ENG - BIOMEDICAL ENGINEERING