Directional shear jamming of frictionless ellipses
Trulsson, Martin LU
(2021)
In Physical Review E
104(4).
- Abstract
In this work we study shear reversals of dense non-Brownian suspensions composed of cohesionless elliptical particles. By numerical simulations, we show that a new fragility appears for frictionless ellipses in the flowing states, where particles can flow indefinitely in one direction at applied shear stresses but shear jam in the other direction upon shear stress reversal. This new fragility, absent in the isotropic particle case, is linked to the directional order of the elongated particles at steady shear and its reorientation at shear stress reversal, which forces the suspensions to pass through a more disordered state with an increased number of contacts in which it might get arrested.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/dc57fcd4-efdc-47a3-bd75-9bac3f17b641
- author
- Trulsson, Martin
LU
- organization
- publishing date
- 2021-10
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review E
- volume
- 104
- issue
- 4
- article number
- 044614
- publisher
- American Physical Society
- external identifiers
-
- pmid:34781452
- scopus:85119403789
- ISSN
- 2470-0045
- DOI
- 10.1103/PhysRevE.104.044614
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021 authors.
- id
- dc57fcd4-efdc-47a3-bd75-9bac3f17b641
- date added to LUP
- 2021-12-20 16:50:03
- date last changed
- 2025-01-13 20:16:27
@article{dc57fcd4-efdc-47a3-bd75-9bac3f17b641,
abstract = {{<p>In this work we study shear reversals of dense non-Brownian suspensions composed of cohesionless elliptical particles. By numerical simulations, we show that a new fragility appears for frictionless ellipses in the flowing states, where particles can flow indefinitely in one direction at applied shear stresses but shear jam in the other direction upon shear stress reversal. This new fragility, absent in the isotropic particle case, is linked to the directional order of the elongated particles at steady shear and its reorientation at shear stress reversal, which forces the suspensions to pass through a more disordered state with an increased number of contacts in which it might get arrested.</p>}},
author = {{Trulsson, Martin}},
issn = {{2470-0045}},
language = {{eng}},
number = {{4}},
publisher = {{American Physical Society}},
series = {{Physical Review E}},
title = {{Directional shear jamming of frictionless ellipses}},
url = {{http://dx.doi.org/10.1103/PhysRevE.104.044614}},
doi = {{10.1103/PhysRevE.104.044614}},
volume = {{104}},
year = {{2021}},
}