{"id":616,"date":"2020-05-20T18:44:18","date_gmt":"2020-05-20T16:44:18","guid":{"rendered":"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/?p=616"},"modified":"2020-05-24T16:59:13","modified_gmt":"2020-05-24T14:59:13","slug":"compaction-model-for-highly-deformable-particle-assemblies","status":"publish","type":"post","link":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/2020\/05\/20\/compaction-model-for-highly-deformable-particle-assemblies\/","title":{"rendered":"Compaction Model for Highly Deformable Particle Assemblies"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">D. Cantor, M. Cardenas-Barrantes, I. Preechawuttipong, M. Renouf and E. Az\u00e9ma, <em><strong>Phys. Rev. Letters<\/strong><\/em>\u00a0124, 208003 (2020).\u00a0\u2013 Editors\u2019 Suggestion \u2013<br><a rel=\"noreferrer noopener\" href=\"https:\/\/t.co\/SNSTc6rDfJ?amp=1\" target=\"_blank\">go.aps.org\/2LJOEhZ<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploadWP\/sites\/18\/2020\/05\/Imagen-de-Mensajes3857826161-700x718.png\" alt=\"\" class=\"wp-image-617\" width=\"168\" height=\"172\" srcset=\"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2020\/05\/Imagen-de-Mensajes3857826161-700x718.png 700w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2020\/05\/Imagen-de-Mensajes3857826161-293x300.png 293w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2020\/05\/Imagen-de-Mensajes3857826161-768x788.png 768w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2020\/05\/Imagen-de-Mensajes3857826161-624x640.png 624w, https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-content\/uploads\/sites\/18\/2020\/05\/Imagen-de-Mensajes3857826161.png 866w\" sizes=\"auto, (max-width: 168px) 100vw, 168px\" \/><figcaption>The color intensities are proportional to the volumetric deformation within the particles.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"has-drop-cap wp-block-paragraph\">The compaction behavior of deformable grain assemblies beyond jamming remains bewildering, and existing models that seek to find the relationship between the confining pressure&nbsp;P&nbsp;and solid fraction&nbsp;\u03c6&nbsp;end up settling for empirical strategies or fitting parameters. Using a coupled discrete-finite element method, we analyze assemblies of highly deformable frictional grains under compression. We show that the solid fraction evolves nonlinearly from the jamming point and asymptotically tends to unity. Based on the micromechanical definition of the granular stress tensor, we develop a theoretical model, free from&nbsp;ad hocparameters, correctly mapping the evolution of&nbsp;\u03c6&nbsp;with&nbsp;P. Our approach unveils the fundamental features of the compaction process arising from the joint evolution of grain connectivity and the behavior of single representative grains. This theoretical framework also allows us to deduce a bulk modulus equation showing an excellent agreement with our numerical data.<br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D. Cantor, M. Cardenas-Barrantes, I. Preechawuttipong, M. Renouf and E. Az\u00e9ma, Phys. Rev. Letters\u00a0124, 208003 (2020).\u00a0\u2013 Editors\u2019 Suggestion \u2013go.aps.org\/2LJOEhZ The compaction behavior of deformable grain assemblies beyond jamming remains bewildering, and existing models that seek to find the relationship between the confining pressure&nbsp;P&nbsp;and solid fraction&nbsp;\u03c6&nbsp;end up settling for empirical strategies or fitting parameters. Using 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-616","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\/616","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=616"}],"version-history":[{"count":4,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/616\/revisions"}],"predecessor-version":[{"id":627,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/posts\/616\/revisions\/627"}],"wp:attachment":[{"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/media?parent=616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/categories?post=616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lmgc.univ-montp2.fr\/perso\/emilien-azema\/wp-json\/wp\/v2\/tags?post=616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}