{"id":4992,"date":"2022-03-04T17:50:35","date_gmt":"2022-03-04T16:50:35","guid":{"rendered":"https:\/\/mindev.mines-stetienne.fr\/lgf\/?page_id=4992"},"modified":"2022-09-07T14:05:15","modified_gmt":"2022-09-07T12:05:15","slug":"couplage-dechelles-dans-les-procedes-delaboration-directe","status":"publish","type":"page","link":"https:\/\/www.mines-stetienne.fr\/lgf\/equipes-2\/mpe\/couplage-dechelles-dans-les-procedes-delaboration-directe\/","title":{"rendered":"Couplage d\u2019\u00e9chelles dans les proc\u00e9d\u00e9s d\u2019\u00e9laboration directe"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row][vc_column][vc_column_text]\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/micro_macro-1024x550.png\" alt=\"\" class=\"wp-image-5005\" width=\"768\" height=\"413\" srcset=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/micro_macro-1024x550.png 1024w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/micro_macro-300x161.png 300w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/micro_macro-768x413.png 768w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/micro_macro.png 1124w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>\n<figcaption><em>Les diff\u00e9rentes \u00e9chelles dans les composites et en m\u00e9tallurgie des poudres<\/em><\/figcaption>\n<\/figure>\n<\/div>\n\n<p>Les proc\u00e9d\u00e9s d\u2019\u00e9laboration (directe) peuvent \u00eatre \u00e9tudi\u00e9s, caract\u00e9ris\u00e9s, mod\u00e9lis\u00e9s ou encore simul\u00e9s \u00e0 diff\u00e9rentes \u00e9chelles spatiales (mais aussi temporelles), caract\u00e9ristiques de diff\u00e9rents ph\u00e9nom\u00e8nes physiques\u00a0: \u00e9chelle macroscopique (dite \u00ab du proc\u00e9d\u00e9 \u00bb), \u00e9chelles m\u00e9so- et\/ou microscopique selon la nature du mat\u00e9riau \u00e9tudi\u00e9. L\u2019\u00e9quipe MPE a d\u00e9velopp\u00e9, notamment entre 2014 et 2019, des outils d\u2019analyse, exp\u00e9rimentaux et de simulation num\u00e9rique, aux diff\u00e9rentes \u00e9chelles mentionn\u00e9es, dans le domaine des composites comme dans celui des c\u00e9ramiques (th\u00e8ses de L. Chevalier, K. Andriamananjara, A. Ducoulombier, I. Ghorbel). Cet axe de recherche vise \u00e0 <strong>coupler<\/strong> ces \u00e9chelles entre elles. Ci-dessous, un exemple de couplage d\u2019\u00e9chelles dans les composites prenant en compte la variabilit\u00e9 de la microstructure par <strong>processus gaussiens <\/strong>(travail de th\u00e8se d\u2019A. Geoffre, 2019 \u2013 2022, Chaire Hexcel).<\/p>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Contexte\u00a0: homog\u00e9n\u00e9isation par prise de moyenne sur un volume \u00e9l\u00e9mentaire repr\u00e9sentatif d\u2019un mat\u00e9riau composite r\u00e9sine (\u00e9poxy) \/ fibres (carbone)<\/strong><\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/homog-1024x558.png\" alt=\"\" class=\"wp-image-5009\" width=\"768\" height=\"419\" srcset=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/homog-1024x558.png 1024w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/homog-300x164.png 300w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/homog-768x419.png 768w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/homog-1536x838.png 1536w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/homog-2048x1117.png 2048w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>\n<figcaption><em>Homog\u00e9n\u00e9isation par prise de moyenne<\/em><\/figcaption>\n<\/figure>\n\n\n<ul>\n<li><strong>G\u00e9n\u00e9ration, par un processus stochastique, d\u2019un volume \u00e9l\u00e9mentaire statistiquement repr\u00e9sentatif du mat\u00e9riaucomposite<\/strong> (Logiciel MIGNUS, A. Geoffre, M. Cataldi, M. Ghestin)<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/MIGNUS-1024x537.png\" alt=\"\" class=\"wp-image-5013\" srcset=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/MIGNUS-1024x537.png 1024w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/MIGNUS-300x157.png 300w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/MIGNUS-768x403.png 768w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/MIGNUS.png 1104w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<figcaption>Microstructure (et son maillage) g\u00e9n\u00e9r\u00e9e par MIGNUS<\/figcaption>\n<\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cas stationnaire<\/strong><\/li>\n<\/ul>\n\n<p>Pour de nombreux tirages de domaines \u00e9l\u00e9mentaires, r\u00e9solution des \u00e9quations de Stokes par \u00e9l\u00e9ments finis P1\/P1 stabilis\u00e9s. Calcul de la <strong>perm\u00e9abilit\u00e9 <\/strong>par la loi de Darcy, pour une loi de frottement fibre \/ r\u00e9sine donn\u00e9e. <strong>R\u00e9gression par processus gaussiens : quantification de la variabilit\u00e9 de la perm\u00e9abilit\u00e9 <\/strong><em><strong>K <\/strong><\/em>[Geoffre <em>et al.<\/em>, 2020]\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"625\" src=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/cas_stationnaire-1024x625.png\" alt=\"\" class=\"wp-image-5016\" srcset=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/cas_stationnaire-1024x625.png 1024w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/cas_stationnaire-300x183.png 300w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/cas_stationnaire-768x469.png 768w, https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/cas_stationnaire.png 1065w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<figcaption><em>Perm\u00e9abilit\u00e9 normalis\u00e9e en fonction de la longueur de glissement<\/em><\/figcaption>\n<\/figure>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cas instationnaire<\/strong><\/li>\n<\/ul>\n<p>Pour de nombreux tirages de domaines \u00e9l\u00e9mentaires, r\u00e9solution des \u00e9quations de Stokes<strong>bifluides<\/strong> air \/ r\u00e9sinepar \u00e9l\u00e9ments finis P1\/P1 stabilis\u00e9s, <strong>incluant les effets de capillarit\u00e9<\/strong>, et <strong>capture<\/strong> du front fluide par une <strong>m\u00e9thode level-set. Calcul de la pression capillaire, de la saturation, de l\u2019avanc\u00e9e du front fluide<\/strong>,puis r\u00e9gression par processus gaussiens.<\/p>\n\n<figure class=\"wp-block-video\"><video height=\"800\" style=\"aspect-ratio: 1388 \/ 800;\" width=\"1388\" controls src=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/flow_gdr.mp4\"><\/video><\/figure>\n[\/vc_column_text][vc_column_text]\n<h3>Autres th\u00e9matiques<\/h3>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]<nav class=\"vcex-navbar vcex-module\"><div class=\"vcex-navbar-inner wpex-clr wpex-last-mr-0\"><a href=\"https:\/\/www.mines-stetienne.fr\/lgf\/equipes-2\/mpe\/couplage-dechelles-dans-les-procedes-delaboration-directe\/\" class=\"vcex-navbar-link vcex-navbar-link--4992 wpex-block wpex-float-left wpex-mr-5 wpex-mb-5 theme-button minimal-border\"><span class=\"vcex-navbar-link-text\">Couplage d\u2019\u00e9chelles dans les proc\u00e9d\u00e9s d\u2019\u00e9laboration directe<\/span><\/a><a href=\"https:\/\/www.mines-stetienne.fr\/lgf\/equipes-2\/mpe\/caracterisation-des-interfaces-et-proprietes-induites\/\" class=\"vcex-navbar-link vcex-navbar-link--4994 wpex-block wpex-float-left wpex-mr-5 wpex-mb-5 theme-button minimal-border\"><span class=\"vcex-navbar-link-text\">Caract\u00e9risation des interfaces et propri\u00e9t\u00e9s induites<\/span><\/a><\/div><\/nav>[\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text] Les proc\u00e9d\u00e9s d\u2019\u00e9laboration (directe) peuvent \u00eatre \u00e9tudi\u00e9s, caract\u00e9ris\u00e9s, mod\u00e9lis\u00e9s ou encore simul\u00e9s \u00e0 diff\u00e9rentes \u00e9chelles spatiales (mais aussi temporelles), caract\u00e9ristiques de diff\u00e9rents ph\u00e9nom\u00e8nes physiques\u00a0: \u00e9chelle macroscopique (dite \u00ab du proc\u00e9d\u00e9 \u00bb), \u00e9chelles m\u00e9so- et\/ou microscopique selon la nature du mat\u00e9riau \u00e9tudi\u00e9. L\u2019\u00e9quipe MPE a d\u00e9velopp\u00e9, notamment entre 2014 et 2019, des outils d\u2019analyse, exp\u00e9rimentaux&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":4964,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"387,389,388,1","_relevanssi_noindex_reason":"","footnotes":""},"tags":[],"class_list":["post-4992","page","type-page","status-publish","hentry","entry","no-media"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","pp_force_visibility":null,"pp_subpost_visibility":null,"pp_inherited_force_visibility":null,"pp_inherited_subpost_visibility":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Couplage d\u2019\u00e9chelles dans les proc\u00e9d\u00e9s d\u2019\u00e9laboration directe - Laboratoire Georges Friedel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mines-stetienne.fr\/lgf\/equipes-2\/mpe\/couplage-dechelles-dans-les-procedes-delaboration-directe\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Couplage d\u2019\u00e9chelles dans les proc\u00e9d\u00e9s d\u2019\u00e9laboration directe - Laboratoire Georges Friedel\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column][vc_column_text] Les proc\u00e9d\u00e9s d\u2019\u00e9laboration (directe) peuvent \u00eatre \u00e9tudi\u00e9s, caract\u00e9ris\u00e9s, mod\u00e9lis\u00e9s ou encore simul\u00e9s \u00e0 diff\u00e9rentes \u00e9chelles spatiales (mais aussi temporelles), caract\u00e9ristiques de diff\u00e9rents ph\u00e9nom\u00e8nes physiques\u00a0: \u00e9chelle macroscopique (dite \u00ab du proc\u00e9d\u00e9 \u00bb), \u00e9chelles m\u00e9so- et\/ou microscopique selon la nature du mat\u00e9riau \u00e9tudi\u00e9. L\u2019\u00e9quipe MPE a d\u00e9velopp\u00e9, notamment entre 2014 et 2019, des outils d\u2019analyse, exp\u00e9rimentaux&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mines-stetienne.fr\/lgf\/equipes-2\/mpe\/couplage-dechelles-dans-les-procedes-delaboration-directe\/\" \/>\n<meta property=\"og:site_name\" content=\"Laboratoire Georges Friedel\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-07T12:05:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mines-stetienne.fr\/lgf\/wp-content\/uploads\/sites\/6\/2022\/03\/micro_macro-1024x550.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.mines-stetienne.fr\\\/lgf\\\/equipes-2\\\/mpe\\\/couplage-dechelles-dans-les-procedes-delaboration-directe\\\/\",\"url\":\"https:\\\/\\\/www.mines-stetienne.fr\\\/lgf\\\/equipes-2\\\/mpe\\\/couplage-dechelles-dans-les-procedes-delaboration-directe\\\/\",\"name\":\"Couplage d\u2019\u00e9chelles dans les proc\u00e9d\u00e9s d\u2019\u00e9laboration directe - 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