{"id":306,"date":"2022-12-09T14:54:41","date_gmt":"2022-12-09T13:54:41","guid":{"rendered":"https:\/\/www.mines-stetienne.fr\/fayol\/?page_id=306"},"modified":"2022-12-09T14:55:10","modified_gmt":"2022-12-09T13:55:10","slug":"these-preparee-par-clement-laboulfie","status":"publish","type":"page","link":"https:\/\/www.mines-stetienne.fr\/fayol\/theses\/these-preparee-par-clement-laboulfie\/","title":{"rendered":"Th\u00e8se pr\u00e9par\u00e9e par Cl\u00e9ment Laboulfie"},"content":{"rendered":"\n<p><strong>Titre : Gestion des incertitudes pour l\u2019identification de lois de comportement composites<\/strong><\/p>\n<p style=\"text-align: left\"><strong>D\u00e9but de th\u00e8se : <\/strong>2019<strong><br>Fin de th\u00e8se : <\/strong>2022<\/p>\n<p style=\"text-align: left\"><strong>R\u00e9sum\u00e9 :&nbsp;<\/strong>Les lois non-lin\u00e9aires et anisotropes utilis\u00e9es pour la mod\u00e9lisation du comportement, de l\u2019endommagement et de la rupture des composites stratifi\u00e9s sont le plus souvent identifi\u00e9es manuellement, par des experts, \u00e0 partir de r\u00e9sultats d\u2019essais.<\/p>\n<p>Les configurations d\u2019essais sont g\u00e9n\u00e9ralement relativement simples, mais assez vari\u00e9es : par exemple, de fa\u00e7on classique, des essais de traction et de compression uniaxiale sur des \u00e9prouvettes unidirectionnelle, dans la direction des fibres et dans la direction transverse pour caract\u00e9riser le comportement dans les axes d\u2019orthotropie du mat\u00e9riau, des essais sur des \u00e9prouvettes \u00e0 +\/- 45\u00b0 pour caract\u00e9riser le comportement de cisaillement plan, ou encore des essais ILSS (interlaminar shear strength) pour caract\u00e9riser les cisaillements interlaminaires.<\/p>\n<p>Outre les essais monotones quasi-statiques, des essais de fluage peuvent aussi \u00eatre employ\u00e9s pour caract\u00e9riser le comportement visqueux du mat\u00e9riau.<\/p>\n<p>Plus les mod\u00e8les sont complets (comportement plan, hors-plan, d\u00e9pendance \u00e0 la vitesse de sollicitation, d\u00e9pendance \u00e0 la temp\u00e9rature, etc.), plus la liste est potentiellement longue. Toutefois, si les configurations exp\u00e9rimentales sont vari\u00e9es, les r\u00e9p\u00e9titions d\u2019essais sont elles peu nombreuses en raison du co\u00fbt potentiellement tr\u00e8s \u00e9lev\u00e9 de ce type de campagne d\u2019essais. En outre, ces campagnes sont le plus souvent incompl\u00e8tes.<\/p>\n<p>Enfin, certains aspects comme la rupture progressive du stratifi\u00e9 ou le comportement hors-plan \u00e9chappent aux essais (simples) usuels de caract\u00e9risation et ne peuvent \u00eatre identifi\u00e9s que sur structures (ou sur \u00e9prouvettes technologiques) par exemple sur plaques trou\u00e9es (et leur analyse n\u00e9cessite l\u2019usage de calcul EF).<\/p>\n<p><strong>Mots cl\u00e9s&nbsp;:<\/strong> Mod\u00e8les mat\u00e9riaux, quantifications d\u2019incertitudes, composites, mod\u00e8les \u00e0 effets mixtes<\/p>\n<p><strong>Date de soutenance pr\u00e9vue : <\/strong>Octobre 2022<\/p>\n<p><strong>Encadrement :<\/strong><\/p>\n<ul id=\"block-67ec023b-3730-49e8-846e-f724794835d8\" class=\"block-editor-rich-text__editable block-editor-block-list__block wp-block is-selected rich-text\" role=\"group\" aria-label=\"Bloc&nbsp;: Liste\" data-block=\"67ec023b-3730-49e8-846e-f724794835d8\" data-type=\"core\/list\" data-title=\"Liste\">\n<li>\n<p><a href=\"&#x6d;a&#x69;&#108;&#x74;&#x6f;:&#x72;&#111;&#x64;&#x6f;l&#x70;&#104;&#x65;&#x2e;l&#x65;&#114;&#x69;&#x63;h&#x65;&#64;&#x6d;&#x69;n&#x65;&#115;&#x2d;&#x73;t&#x65;&#116;&#x69;&#x65;n&#x6e;&#101;&#x2e;&#x66;r\">Rodolphe Le Riche<\/a> : Directeur de recherche Mines Saint Etienne, CNRS, Limos<\/p>\n<\/li>\n<\/ul>\n<p><strong>Partenaires ou\/et Financeurs<\/strong> : Onera\/Safran Tech<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1536,"featured_media":0,"parent":286,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"class_list":["post-306","page","type-page","status-publish","hentry"],"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 - 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