Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution
Although substantial progress has been made in recent years in research onsheared granular matter, relatively few studies concentrate on the behavior of materials withvery strong polydispersity. In this paper, shear deformation of a two-dimensional granularmaterial composed of frictional disk-shaped...
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ftmdpi:oai:mdpi.com:/1099-4300/15/11/4802/ 2023-08-20T04:09:45+02:00 Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution Agnieszka Herman 2013-11-05 application/pdf https://doi.org/10.3390/e15114802 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/e15114802 https://creativecommons.org/licenses/by/3.0/ Entropy; Volume 15; Issue 11; Pages: 4802-4821 granular materials finite-element simulation shear deformation jamming phase transition polydispersity force networks Text 2013 ftmdpi https://doi.org/10.3390/e15114802 2023-07-31T20:34:37Z Although substantial progress has been made in recent years in research onsheared granular matter, relatively few studies concentrate on the behavior of materials withvery strong polydispersity. In this paper, shear deformation of a two-dimensional granularmaterial composed of frictional disk-shaped grains with power-law size distribution isanalyzed numerically with a finite-difference model. The analysis of the results concentrateson those aspects of the behavior of the modeled system that are related to its polydispersity. Itis demonstrated that many important global material properties are dependent on the behaviorof the largest grains from the tail of the size distribution. In particular, they are responsiblefor global correlation of velocity anomalies emerging at the jamming transition. They alsobuild a skeleton of the global contact and force networks in shear-jammed systems, leadingto the very open, “sparse” structure of those networks, consisting of only ~ 35% of all grains.The details of the model are formulated so that it represents fragmented sea ice moving ona two-dimensional sea surface; however, the results are relevant for other types of stronglypolydisperse granular materials, as well. Text Sea ice MDPI Open Access Publishing Entropy 15 12 4802 4821 |
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topic |
granular materials finite-element simulation shear deformation jamming phase transition polydispersity force networks |
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granular materials finite-element simulation shear deformation jamming phase transition polydispersity force networks Agnieszka Herman Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution |
topic_facet |
granular materials finite-element simulation shear deformation jamming phase transition polydispersity force networks |
description |
Although substantial progress has been made in recent years in research onsheared granular matter, relatively few studies concentrate on the behavior of materials withvery strong polydispersity. In this paper, shear deformation of a two-dimensional granularmaterial composed of frictional disk-shaped grains with power-law size distribution isanalyzed numerically with a finite-difference model. The analysis of the results concentrateson those aspects of the behavior of the modeled system that are related to its polydispersity. Itis demonstrated that many important global material properties are dependent on the behaviorof the largest grains from the tail of the size distribution. In particular, they are responsiblefor global correlation of velocity anomalies emerging at the jamming transition. They alsobuild a skeleton of the global contact and force networks in shear-jammed systems, leadingto the very open, “sparse” structure of those networks, consisting of only ~ 35% of all grains.The details of the model are formulated so that it represents fragmented sea ice moving ona two-dimensional sea surface; however, the results are relevant for other types of stronglypolydisperse granular materials, as well. |
format |
Text |
author |
Agnieszka Herman |
author_facet |
Agnieszka Herman |
author_sort |
Agnieszka Herman |
title |
Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution |
title_short |
Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution |
title_full |
Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution |
title_fullStr |
Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution |
title_full_unstemmed |
Shear-Jamming in Two-Dimensional Granular Materials with Power-Law Grain-Size Distribution |
title_sort |
shear-jamming in two-dimensional granular materials with power-law grain-size distribution |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2013 |
url |
https://doi.org/10.3390/e15114802 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Entropy; Volume 15; Issue 11; Pages: 4802-4821 |
op_relation |
https://dx.doi.org/10.3390/e15114802 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.3390/e15114802 |
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Entropy |
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15 |
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4802 |
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