{"id":39,"date":"2007-07-13T16:39:22","date_gmt":"2007-07-13T14:39:22","guid":{"rendered":"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/?p=39"},"modified":"2019-03-03T11:13:27","modified_gmt":"2019-03-03T10:13:27","slug":"force-transmission-in-a-packing-of-pentagonal-particles","status":"publish","type":"post","link":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/2007\/07\/13\/force-transmission-in-a-packing-of-pentagonal-particles\/","title":{"rendered":"Force transmission in a packing of pentagonal particles"},"content":{"rendered":"<h5><span class=\"style_2\">E. Az\u00e9ma<\/span>, F. Radja\u00ef, R. Peyroux, G. Saussine, Physical Review E , 76, 011301 (2007).<\/h5>\n<p>&nbsp;<\/p>\n<div id=\"attachment_98\" style=\"width: 245px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-98\" class=\" wp-image-98\" src=\"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploadWP\/sites\/18\/2017\/03\/Contact_network_pentagons-300x300.jpg\" alt=\"\" width=\"235\" height=\"235\" srcset=\"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Contact_network_pentagons-300x300.jpg 300w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Contact_network_pentagons-150x150.jpg 150w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Contact_network_pentagons.jpg 402w\" sizes=\"auto, (max-width: 235px) 100vw, 235px\" \/><p id=\"caption-attachment-98\" class=\"wp-caption-text\">A map of the contact network composed of very weak, intermediate, and strong contacts in the pentagon packing.<\/p><\/div>\n<p>We perform a detailed analysis of the contact force network in a dense confined packing of pentagonal particles simulated by means of the contact dynamics method. The effect of particle shape is evidenced by comparing the data from pentagon packing and from a packing with identical characteristics, except for the circular shape of the particles. A counterintuitive finding of this work is that, under steady shearing, the pentagon packing develops a lower structural anisotropy than the disk packing. We show that this weakness is compensated by a higher force anisotropy, leading to enhanced shear strength of the pentagon packing. We revisit \u201cstrong\u201d and \u201cweak\u201d force networks in the pentagon packing, but our simulation data also provide evidence for a large class of \u201cvery weak\u201d forces carried mainly by vertex-to-edge contacts. The strong force chains are mostly composed of edge-to-edge contacts with a marked zigzag aspect and a decreasing exponen- tial probability distribution as in a disk packing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>de<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-39","post","type-post","status-publish","format-standard","hentry","category-articles"],"_links":{"self":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/39","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/comments?post=39"}],"version-history":[{"count":3,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/39\/revisions"}],"predecessor-version":[{"id":101,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/39\/revisions\/101"}],"wp:attachment":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/media?parent=39"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/categories?post=39"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/tags?post=39"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}