The role of friction in the yielding of adhesive non-Brownian suspensions
Date Available
2019-10-18Type
datasetData Creator
Richards, James AGuy, Ben M
Blanco, Elena
Hermes, Michiel
Poy, Guilhem
Poon, Wilson CK
Publisher
University of Edinburgh. School of Physics. Institute for Condensed Matter and Complex SystemsRelation (Is Referenced By)
https://arxiv.org/abs/1910.07958Metadata
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Citation
Richards, James A; Guy, Ben M; Blanco, Elena; Hermes, Michiel; Poy, Guilhem; Poon, Wilson CK. (2019). The role of friction in the yielding of adhesive non-Brownian suspensions, [dataset]. University of Edinburgh. School of Physics. Institute for Condensed Matter and Complex Systems. https://doi.org/10.7488/ds/2634.Description
Yielding behavior is well known in attractive colloidal suspensions. Adhesive non-Brownian suspensions, in which the interparticle bonds are due to finite-size contacts, also show yielding behavior. We use a combination of steady-state, oscillatory and shear-reversal rheology to probe the physical origins of yielding in the latter class of materials, and find that yielding is not simply a matter of breaking adhesive bonds, but involves unjamming from a shear-jammed state in which the micro-structure has adapted to the direction of the applied load. Comparison with a recent constraint-based rheology model shows the importance of friction in determining the yield stress, suggesting novel ways to tune the flow of such suspensions.The following licence files are associated with this item: