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Nonlinear response of dense colloidal suspensions under oscillatory shear : mode-coupling theory and FT-rheology experiments

Nonlinear response of dense colloidal suspensions under oscillatory shear : mode-coupling theory and FT-rheology experiments

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BRADER, Joseph M., Miriam SIEBENBÜRGER, Matthias BALLAUFF, Kathrin REINHEIMER, Manfred WILHELM, S. J. FREY, Fabian WEYSSER, Matthias FUCHS, 2010. Nonlinear response of dense colloidal suspensions under oscillatory shear : mode-coupling theory and FT-rheology experiments. In: Physical Review E. 82(6). ISSN 1539-3755. Available under: doi: 10.1103/PhysRevE.82.061401

@article{Brader2010Nonli-13772, title={Nonlinear response of dense colloidal suspensions under oscillatory shear : mode-coupling theory and FT-rheology experiments}, year={2010}, doi={10.1103/PhysRevE.82.061401}, number={6}, volume={82}, issn={1539-3755}, journal={Physical Review E}, author={Brader, Joseph M. and Siebenbürger, Miriam and Ballauff, Matthias and Reinheimer, Kathrin and Wilhelm, Manfred and Frey, S. J. and Weysser, Fabian and Fuchs, Matthias} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/13772"> <dc:creator>Reinheimer, Kathrin</dc:creator> <dc:contributor>Siebenbürger, Miriam</dc:contributor> <dc:creator>Weysser, Fabian</dc:creator> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Wilhelm, Manfred</dc:contributor> <dc:creator>Fuchs, Matthias</dc:creator> <dc:language>eng</dc:language> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <dc:rights>deposit-license</dc:rights> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:abstract xml:lang="eng">Using a combination of theory, experiment, and simulation we investigate the nonlinear response of dense colloidal suspensions to large amplitude oscillatory shear flow. The time-dependent stress response is calculated using a recently developed schematic mode-coupling-type theory describing colloidal suspensions under externally applied flow. For finite strain amplitudes the theory generates a nonlinear response, characterized by significant higher harmonic contributions. An important feature of the theory is the prediction of an ideal glass transition at sufficiently strong coupling, which is accompanied by the discontinuous appearance of a dynamic yield stress. For the oscillatory shear flow under consideration we find that the yield stress plays an important role in determining the nonlinearity of the time-dependent stress response. Our theoretical findings are strongly supported by both large amplitude oscillatory experiments (with Fourier transform rheology analysis) on suspensions of thermosensitive core-shell particles dispersed in water and Brownian dynamics simulations performed on a two-dimensional binary hard-disk mixture. In particular, theory predicts nontrivial values of the exponents governing the final decay of the storage and loss moduli as a function of strain amplitude which are in good agreement with both simulation and experiment. A consistent set of parameters in the presented schematic model achieves to jointly describe linear moduli, nonlinear flow curves, and large amplitude oscillatory spectroscopy.</dcterms:abstract> <dc:contributor>Weysser, Fabian</dc:contributor> <dc:contributor>Fuchs, Matthias</dc:contributor> <dc:contributor>Frey, S. J.</dc:contributor> <dc:creator>Wilhelm, Manfred</dc:creator> <dcterms:title>Nonlinear response of dense colloidal suspensions under oscillatory shear : mode-coupling theory and FT-rheology experiments</dcterms:title> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/13772"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-06-27T17:35:02Z</dc:date> <dcterms:issued>2010</dcterms:issued> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Ballauff, Matthias</dc:contributor> <dc:creator>Ballauff, Matthias</dc:creator> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/13772/2/Fuchs_etal.pdf"/> <dc:creator>Brader, Joseph M.</dc:creator> <dcterms:bibliographicCitation>First publ. in: Physical Review E ; 82 (2010). - 061401</dcterms:bibliographicCitation> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-06-27T17:35:02Z</dcterms:available> <dc:contributor>Brader, Joseph M.</dc:contributor> <dc:contributor>Reinheimer, Kathrin</dc:contributor> <dc:creator>Siebenbürger, Miriam</dc:creator> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/13772/2/Fuchs_etal.pdf"/> <dc:creator>Frey, S. J.</dc:creator> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> </rdf:Description> </rdf:RDF>

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