Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/7422
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dhar, Subhransu | - |
dc.contributor.author | Chattopadhyay, Sebanti Sebanti | - |
dc.contributor.author | Majumdar, Sayantan | - |
dc.date.accessioned | 2020-01-31T09:49:10Z | - |
dc.date.available | 2020-01-31T09:49:10Z | - |
dc.date.issued | 2020-01-31T09:49:10Z | - |
dc.identifier.citation | Journal of Physics: Condensed Matter, 2020, Vol.32, Article No.124002 | en_US |
dc.identifier.issn | 0953-8984 | - |
dc.identifier.issn | 1361-648X (Online) | - |
dc.identifier.uri | http://hdl.handle.net/2289/7422 | - |
dc.description | Restricted Access | en_US |
dc.description.abstract | Under an increasing applied shear stress ([ image ]), the viscosity of many dense particulate suspensions increases drastically beyond a stress onset ([ image ]), a phenomenon known as discontinuous shear-thickening. Recent studies point out that some suspensions can transform into a stress induced solid-like shear jammed (SJ) state at high particle volume fraction ([ image ]). SJ state develops a finite yield stress and hence is distinct from a shear-thickened state. Here, we study the steady state shear-thickening behaviour of dense suspensions formed by dispersing colloidal polystyrene particles (PS) in polyethylene glycol (PEG). We find that for small [ image ] values the viscosity of the suspensions as a function of [ image ] can be well described by Krieger─Dougherty (KD) relation. However, for higher values of [ image ] ([ image ][ image ]), KD relation systematically overestimates the measured viscosity, particularly for higher [ image ] values. This systematic deviation can be rationalized by the weakening of the sample due to flow induced failures of the solid-like SJ state. Using Wyart─Cates model, we propose a method to predict the SJ onset from the steady state rheology measurements. Our results are further supported by in situ optical imaging of the sample boundary under shear. | en_US |
dc.language.iso | en | en_US |
dc.publisher | The IOP Publishing Ltd. | en_US |
dc.relation.uri | https://ui.adsabs.harvard.edu/abs/2020JPCM...32l4002D/abstract | en_US |
dc.relation.uri | https://arxiv.org/abs/1908.07183 | en_US |
dc.relation.uri | https://doi.org/10.1088/1361-648X/ab5bd2 | en_US |
dc.rights | 2019 IOP Publishing Ltd. | en_US |
dc.subject | shear jamming | en_US |
dc.subject | dense suspensions | en_US |
dc.subject | rheology | en_US |
dc.title | Signature of jamming under steady shear in dense particulate suspensions | en_US |
dc.type | Article | en_US |
dc.additional | Supplementary Information Available | en_US |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2020_J_Phys__Condens_Matter_Vol.32_Article No.124002.pdf Restricted Access | Restricted Access | 1.29 MB | Adobe PDF | View/Open Request a copy |
2020_J_Phys_Condens_Matter_Vol.32_Supl_Info.pdf Restricted Access | Restricted Access | 1.87 MB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.