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Shear banding, aging and noise dynamics in soft glassy materials | | S M Fielding
; M E Cates
; P Sollich
; | | Date: |
17 Dec 2008 | | Abstract: | The ’soft glassy rheology’ (SGR) model gives an appealing account of the flow
of nonergodic soft materials in terms of the local yield dynamics of mesoscopic
elements. Newtonian, power-law, and yield-stress fluid regimes arise on varying
a ’noise temperature’, x. Here we extend the model, to capture the idea that
the noise is largely caused by yield itself. The extended model can account for
the viscosity-bifurcation and shear-banding effects reported recently in a wide
range of soft materials. A variant model may shed light on shear banding and
strain-rate hysteresis seen in glassy star polymer solutions. | | Source: | arXiv, 0812.3300 | | Services: | Forum | Review | PDF | Favorites | |
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