{"id":216,"date":"2014-04-16T15:34:14","date_gmt":"2014-04-16T13:34:14","guid":{"rendered":"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/?p=216"},"modified":"2019-03-03T11:12:59","modified_gmt":"2019-03-03T10:12:59","slug":"numerical-modeling-of-particle-breaking-process-in-granular-materials-compaction-and-evolution-of-size-distribution","status":"publish","type":"post","link":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/2014\/04\/16\/numerical-modeling-of-particle-breaking-process-in-granular-materials-compaction-and-evolution-of-size-distribution\/","title":{"rendered":"Numerical Modeling of Particle Breaking Process in Granular Materials : Compaction and Evolution of Size Distribution"},"content":{"rendered":"<p>D. Nguyen, E. Az\u00e9ma and F. Radjai and P. Sornay, \u00a0pp. 161- 167, in Advances in bifurcation and degradation in geomaterials (Springer, Dordrecht), \u00e9dit\u00e9 par K ;-T. Chau and J. Zhao, ISBN 978-3-319-13506-9.<\/p>\n<div class=\"page\" title=\"Page 1\">\n<div class=\"layoutArea\">\n<div class=\"column\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-217 alignleft\" src=\"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploadWP\/sites\/18\/2017\/03\/Unknown.jpeg\" alt=\"\" width=\"136\" height=\"205\" \/>The compaction of powders depends both on grain rearangements and grain breakage. We introduce a grain fracture model prescribed in the framework of the contact dynamics method for the simulation of uniaxial compaction. We find that the grain size reduction is highly heterogeneous as a consequence of inhomogeneous stress transmission as observed in real grinding processes or in natural degradation of geomaterials. Even under high stresses, a significant fraction of grains survive whereas many grains are fully shattered. The grain size distribution tends to a power- law distribution with increasing size span. We analyze the progressive evolution of compressibility during compaction as well as the effect of grain shape and size distribution.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>D. Nguyen, E. Az\u00e9ma and F. Radjai and P. Sornay, \u00a0pp. 161- 167, in Advances in bifurcation and degradation in geomaterials (Springer, Dordrecht), \u00e9dit\u00e9 par K ;-T. Chau and J. Zhao, ISBN 978-3-319-13506-9. The compaction of powders depends both on grain rearangements and grain breakage. We introduce a grain fracture model prescribed in the framework [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-216","post","type-post","status-publish","format-standard","hentry","category-books_chapter"],"_links":{"self":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/216","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=216"}],"version-history":[{"count":1,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/216\/revisions"}],"predecessor-version":[{"id":218,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/216\/revisions\/218"}],"wp:attachment":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/media?parent=216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/categories?post=216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/tags?post=216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}