Schematic mode coupling theory of glass rheology : single and double step strains


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VOIGTMANN, Thomas, Joseph M. BRADER, Matthias FUCHS, Michael E. CATES, 2012. Schematic mode coupling theory of glass rheology : single and double step strains. In: Soft Matter. 8(15), pp. 4244-4253. ISSN 1744-683X. Available under: doi: 10.1039/C2SM06891E

@article{Voigtmann2012Schem-19587, title={Schematic mode coupling theory of glass rheology : single and double step strains}, year={2012}, doi={10.1039/C2SM06891E}, number={15}, volume={8}, issn={1744-683X}, journal={Soft Matter}, pages={4244--4253}, author={Voigtmann, Thomas and Brader, Joseph M. and Fuchs, Matthias and Cates, Michael E.} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dcterms:issued>2012</dcterms:issued> <dc:creator>Fuchs, Matthias</dc:creator> <dcterms:rights rdf:resource=""/> <dspace:hasBitstream rdf:resource=""/> <dc:creator>Cates, Michael E.</dc:creator> <dc:contributor>Brader, Joseph M.</dc:contributor> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Brader, Joseph M.</dc:creator> <dc:date rdf:datatype="">2012-06-26T10:15:40Z</dc:date> <bibo:uri rdf:resource=""/> <dcterms:abstract xml:lang="eng">Mode coupling theory (MCT) has had notable successes in addressing the rheology of hard-sphere colloidal glasses, and also soft colloidal glasses such as star-polymers. Here, we explore the properties of a recently developed MCT-based schematic constitutive equation under idealized experimental protocols involving single and then double step strains. We find strong deviations from expectations based on factorable, BKZ-type constitutive models. Specifically, a nonvanishing stress remains long after the application of two equal and opposite step strains; this residual stress is a signature of plastic deformation. We also discuss the distinction between hypothetically instantaneous step strains and fast ramps. These are not generally equivalent in our MCT approach, with the latter more likely to capture the physics of experimental ‘step’ strains. The distinction points to the different role played by reversible anelastic, and irreversible plastic rearrangements.</dcterms:abstract> <dcterms:title>Schematic mode coupling theory of glass rheology : single and double step strains</dcterms:title> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Cates, Michael E.</dc:contributor> <dc:creator>Voigtmann, Thomas</dc:creator> <dcterms:bibliographicCitation>First publ. in: Soft Matter ; 8 (2012), 15. - pp. 4244-4253</dcterms:bibliographicCitation> <dc:contributor>Fuchs, Matthias</dc:contributor> <dc:language>eng</dc:language> <dcterms:available rdf:datatype="">2012-06-26T10:15:40Z</dcterms:available> <dc:contributor>Voigtmann, Thomas</dc:contributor> <dcterms:hasPart rdf:resource=""/> <dc:rights>terms-of-use</dc:rights> <dspace:isPartOfCollection rdf:resource=""/> <dcterms:isPartOf rdf:resource=""/> </rdf:Description> </rdf:RDF>

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