{"id":172,"date":"2015-02-16T10:50:48","date_gmt":"2015-02-16T09:50:48","guid":{"rendered":"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/?p=172"},"modified":"2019-03-03T11:12:58","modified_gmt":"2019-03-03T10:12:58","slug":"bonded-cell-model-for-particle-fracture","status":"publish","type":"post","link":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/2015\/02\/16\/bonded-cell-model-for-particle-fracture\/","title":{"rendered":"Bonded-cell model for particle fracture"},"content":{"rendered":"<div class=\"page\" title=\"Page 1\">\n<div class=\"layoutArea\">\n<div class=\"column\">\n<p>Duc-Hanh Nguyen, \u00a0Emilien Az\u00e9ma, \u00a0Philippe Sornay, \u00a0and Farhang Radjai, PHYSICAL REVIEW E 91, 022203 (2015)<\/p>\n<div class=\"page\" title=\"Page 1\">\n<div class=\"layoutArea\">\n<div class=\"column\">\n<div id=\"attachment_173\" style=\"width: 178px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-173\" class=\" wp-image-173\" src=\"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploadWP\/sites\/18\/2017\/03\/Particle-fracture-300x293.jpg\" alt=\"\" width=\"168\" height=\"164\" srcset=\"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Particle-fracture-300x293.jpg 300w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Particle-fracture-768x750.jpg 768w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Particle-fracture-700x684.jpg 700w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2017\/03\/Particle-fracture.jpg 1624w\" sizes=\"auto, (max-width: 168px) 100vw, 168px\" \/><p id=\"caption-attachment-173\" class=\"wp-caption-text\">A single circular particle subjected to diametral compression (Brazilian test)<\/p><\/div>\n<p>Particle degradation and fracture play an important role in natural granular flows and in many applications of granular materials. We analyze the fracture properties of two-dimensional disklike particles modeled as aggregates of rigid cells bonded along their sides by a cohesive Mohr-Coulomb law and simulated by the contact dynamics method. We show that the compressive strength scales with tensile strength between cells but depends also on the friction coefficient and a parameter describing cell shape distribution. The statistical scatter of compressive strength is well described by the Weibull distribution function with a shape parameter varying from 6 to 10 depending on cell shape distribution. We show that this distribution may be understood in terms of percolating critical intercellular contacts. We propose a random-walk model of critical contacts that leads to particle size dependence of the compressive strength in good agreement with our simulation data.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Duc-Hanh Nguyen, \u00a0Emilien Az\u00e9ma, \u00a0Philippe Sornay, \u00a0and Farhang Radjai, PHYSICAL REVIEW E 91, 022203 (2015) Particle degradation and fracture play an important role in natural granular flows and in many applications of granular materials. We analyze the fracture properties of two-dimensional disklike particles modeled as aggregates of rigid cells bonded along their sides by a [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-172","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\/172","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\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/comments?post=172"}],"version-history":[{"count":1,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/172\/revisions"}],"predecessor-version":[{"id":174,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/172\/revisions\/174"}],"wp:attachment":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/media?parent=172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/categories?post=172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/tags?post=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}