Jamming with tunable roughness
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/211690 |
Resumo: | We introduce a new model to study the effect of surface roughness on the jamming transition. By performing numerical simulations, we show that for a smooth surface, the jamming transition density and the contact number at the transition point both increase upon increasing asphericity, as for ellipsoids and spherocylinders. Conversely, for a rough surface, both quantities decrease, in quantitative agreement with the behavior of frictional particles. Furthermore, in the limit corresponding to the Coulomb friction law, the model satisfies a generalized isostaticity criterion proposed in previous studies. We introduce a counting argument that justifies this criterion and interprets it geometrically. Finally, we propose a simple theory to predict the contact number at finite friction from the knowledge of the force distribution in the infinite friction limit. |
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Ikeda, HarukuniBrito, CarolinaWyart, MatthieuZamponi, Francesco2020-07-10T03:41:50Z20200031-9007http://hdl.handle.net/10183/211690001115084We introduce a new model to study the effect of surface roughness on the jamming transition. By performing numerical simulations, we show that for a smooth surface, the jamming transition density and the contact number at the transition point both increase upon increasing asphericity, as for ellipsoids and spherocylinders. Conversely, for a rough surface, both quantities decrease, in quantitative agreement with the behavior of frictional particles. Furthermore, in the limit corresponding to the Coulomb friction law, the model satisfies a generalized isostaticity criterion proposed in previous studies. We introduce a counting argument that justifies this criterion and interprets it geometrically. Finally, we propose a simple theory to predict the contact number at finite friction from the knowledge of the force distribution in the infinite friction limit.application/pdfengPhysical review letters. Melville. Vol. 124, no. 20 (May 2020), 208001, 6 p.Rugosidade de superfícieInterferenciaJamming with tunable roughnessEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001115084.pdf.txt001115084.pdf.txtExtracted Texttext/plain24489http://www.lume.ufrgs.br/bitstream/10183/211690/2/001115084.pdf.txte0a63fd09f5202ed5ed040660e9c7295MD52ORIGINAL001115084.pdfTexto completo (inglês)application/pdf542363http://www.lume.ufrgs.br/bitstream/10183/211690/1/001115084.pdff69300fa609810b313118ed5bcffb204MD5110183/2116902020-07-11 03:53:21.799789oai:www.lume.ufrgs.br:10183/211690Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2020-07-11T06:53:21Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Jamming with tunable roughness |
title |
Jamming with tunable roughness |
spellingShingle |
Jamming with tunable roughness Ikeda, Harukuni Rugosidade de superfície Interferencia |
title_short |
Jamming with tunable roughness |
title_full |
Jamming with tunable roughness |
title_fullStr |
Jamming with tunable roughness |
title_full_unstemmed |
Jamming with tunable roughness |
title_sort |
Jamming with tunable roughness |
author |
Ikeda, Harukuni |
author_facet |
Ikeda, Harukuni Brito, Carolina Wyart, Matthieu Zamponi, Francesco |
author_role |
author |
author2 |
Brito, Carolina Wyart, Matthieu Zamponi, Francesco |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Ikeda, Harukuni Brito, Carolina Wyart, Matthieu Zamponi, Francesco |
dc.subject.por.fl_str_mv |
Rugosidade de superfície Interferencia |
topic |
Rugosidade de superfície Interferencia |
description |
We introduce a new model to study the effect of surface roughness on the jamming transition. By performing numerical simulations, we show that for a smooth surface, the jamming transition density and the contact number at the transition point both increase upon increasing asphericity, as for ellipsoids and spherocylinders. Conversely, for a rough surface, both quantities decrease, in quantitative agreement with the behavior of frictional particles. Furthermore, in the limit corresponding to the Coulomb friction law, the model satisfies a generalized isostaticity criterion proposed in previous studies. We introduce a counting argument that justifies this criterion and interprets it geometrically. Finally, we propose a simple theory to predict the contact number at finite friction from the knowledge of the force distribution in the infinite friction limit. |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-07-10T03:41:50Z |
dc.date.issued.fl_str_mv |
2020 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/211690 |
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0031-9007 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001115084 |
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0031-9007 001115084 |
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http://hdl.handle.net/10183/211690 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review letters. Melville. Vol. 124, no. 20 (May 2020), 208001, 6 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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UFRGS |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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