L773:2100 014X OR L773:2101 6275
Sökning: L773:2100 014X OR L773:2101 6275 > Non-local rheology ...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03472naa a2200373 4500 | |
| 001 | oai:lup.lub.lu.se:7025667d-248f-4069-b337-b8ce21cb5531 | |
| 003 | SwePub | |
| 008 | 170727s2017 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://lup.lub.lu.se/record/7025667d-248f-4069-b337-b8ce21cb55312 URI |
| 024 | 7 | a https://doi.org/10.1051/epjconf/2017140110132 DOI |
| 040 | a (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Bouzid, Mehdiu Paris Diderot University,Georgetown University4 aut |
| 245 | 1 0 | a Non-local rheology of dense granular flows |
| 264 | c 2017-06-30 | |
| 264 | 1 | b EDP Sciences,c 2017 |
| 520 | a The rheology of dense granular flows is studied numerically in a shear cell controlled at constant pressure and shear stress, confined between two granular shear flows. We show that a liquid state can be achieved even far below the yield stress, whose flow can be described with the same rheology as above the yield stress. A non-local constitutive relation is derived from dimensional analysis through a gradient expansion and calibrated using the spatial relaxation of velocity profiles observed under homogeneous stresses. Both for frictional and frictionless grains, the relaxation length is found to diverge as the inverse square root of the distance to the yield point, on both sides of that point. We also make use of a micro-rheometer to determine the influence of a distant shear band on the local rheological behaviour. Finally, we compare various approaches based on different non-local constitutive relations and choices for the fluidity parameter. We emphasise that, to discriminate between the different approaches proposed in the literature, one has to go beyond the predictions derived from linearisation around a uniform stress profile, such as that obtained in a simple shear cell. We argue that future tests can be based on the nature of the chosen fluidity parameter, and the related boundary conditions, as well as the hypothesis made to derive the models and the dynamical mechanisms underlying their dynamics. | |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknik0 (SwePub)2052 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineering0 (SwePub)2052 hsv//eng |
| 700 | 1 | a Trulsson, Martinu Lund University,Lunds universitet,Beräkningskemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Computational Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Paris Diderot University4 aut0 (Swepub:lu)teok-mit |
| 700 | 1 | a Izzet, Adrienu Paris Diderot University4 aut |
| 700 | 1 | a Favier De Coulomb, Adelineu Paris Diderot University4 aut |
| 700 | 1 | a Claudin, Philippeu Georgetown University4 aut |
| 700 | 1 | a Clément, Ericu Paris Diderot University4 aut |
| 700 | 1 | a Andreotti, Brunou Paris Diderot University4 aut |
| 710 | 2 | a Paris Diderot Universityb Georgetown University4 org |
| 773 | 0 | t EPJ Web of Conferencesd : EDP Sciencesg 140q 140x 2101-6275x 2100-014X |
| 856 | 4 | u http://dx.doi.org/10.1051/epjconf/201714011013x freey FULLTEXT |
| 856 | 4 | u https://www.epj-conferences.org/articles/epjconf/pdf/2017/09/epjconf162472.pdf |
| 856 | 4 8 | u https://lup.lub.lu.se/record/7025667d-248f-4069-b337-b8ce21cb5531 |
| 856 | 4 8 | u https://doi.org/10.1051/epjconf/201714011013 |
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