{"id":117977,"date":"2024-10-23T09:46:05","date_gmt":"2024-10-23T07:46:05","guid":{"rendered":"https:\/\/www.immo-invest.ch\/neues-schichtmaterial-daempft-vibrationen-und-laerm\/"},"modified":"2024-10-23T10:15:14","modified_gmt":"2024-10-23T08:15:14","slug":"neues-schichtmaterial-daempft-vibrationen-und-laerm","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/neues-schichtmaterial-daempft-vibrationen-und-laerm\/","title":{"rendered":"Un nouveau mat\u00e9riau en couches att\u00e9nue les vibrations et le bruit"},"content":{"rendered":"<p class=\"bodytext\">Des chercheurs en mat\u00e9riaux de l&rsquo;Ecole polytechnique f\u00e9d\u00e9rale de Zurich<a href=\"https:\/\/ethz.ch\/de.html\" target=\"_blank\" rel=\"noopener\">(EPFZ<\/a>) ont mis au point un mat\u00e9riau stratifi\u00e9 qui est \u00e0 la fois rigide et porteur, tout en pr\u00e9sentant une grande capacit\u00e9 d&rsquo;amortissement des vibrations et du bruit. Ioanna Tsimouri a r\u00e9ussi un tour de force dans sa th\u00e8se de doctorat sous la direction d&rsquo;Andrei Gusev et de Walter Caseri, \u00e9crit l&rsquo;ETH dans un <a href=\"https:\/\/ethz.ch\/de\/news-und-veranstaltungen\/eth-news\/news\/2024\/10\/ein-schichtmaterial-stoppt-vibrationen-und-laerm.html\" target=\"_blank\" rel=\"noopener\">communiqu\u00e9<\/a>. En effet, ces deux propri\u00e9t\u00e9s sont en fait incompatibles.<\/p>\n<p class=\"bodytext\">Les mat\u00e9riaux composites d\u00e9velopp\u00e9s par Tsimouri se composent de plusieurs couches de plaques de verre et de silicium reli\u00e9es par des couches de polym\u00e8res caoutchouteux. Dans un premier temps, Tsimouri et Gusev ont calcul\u00e9 l&rsquo;\u00e9paisseur des couches de polym\u00e8re n\u00e9cessaires pour que le mat\u00e9riau stratifi\u00e9 soit \u00e0 la fois rigide et amortissant. Les mod\u00e8les informatiques ont montr\u00e9 que les couches de verre et de silicium, \u00e9paisses de quelques dixi\u00e8mes de millim\u00e8tre, devaient repr\u00e9senter au moins 99% du volume de l&rsquo;ensemble du mat\u00e9riau stratifi\u00e9. \u00ab\u00a0Si la couche de polym\u00e8re est trop fine, il n&rsquo;y a pratiquement pas d&rsquo;effet d&rsquo;att\u00e9nuation\u00a0\u00bb, explique Tsimouri dans le communiqu\u00e9. \u00ab\u00a0Si elle est trop \u00e9paisse, le mat\u00e9riau n&rsquo;est pas assez rigide\u00a0\u00bb<\/p>\n<p class=\"bodytext\">Les mat\u00e9riaux en couches ont d\u00e9j\u00e0 prouv\u00e9 leurs propri\u00e9t\u00e9s m\u00e9caniques dans des exp\u00e9riences d\u00e9pendant de la fr\u00e9quence et de la temp\u00e9rature. La fabrication \u00e0 l&rsquo;\u00e9chelle industrielle devrait \u00e9galement \u00eatre possible : \u00ab\u00a0Si un fabricant dispose des machines ad\u00e9quates, il peut \u00e9galement produire le stratifi\u00e9 en panneaux de plusieurs m\u00e8tres carr\u00e9s\u00a0\u00bb, estime Caseri. Les chercheurs ont donc d\u00e9pos\u00e9 une demande de brevet pour leur technologie. Selon eux, le mat\u00e9riau pourrait trouver une multitude d&rsquo;applications dans des secteurs allant de la construction \u00e0 l&rsquo;ing\u00e9nierie, de l&rsquo;a\u00e9rospatiale aux capteurs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Des chercheurs de l&rsquo;ETH Zurich ont mis au point un nouveau mat\u00e9riau stratifi\u00e9 qui est \u00e0 la fois rigide et porteur, mais aussi tr\u00e8s amortissant. Ce mat\u00e9riau composite pourrait trouver des applications dans de nombreux domaines, notamment la construction, l&rsquo;ing\u00e9nierie et l&rsquo;a\u00e9ronautique.<\/p>\n","protected":false},"author":2,"featured_media":117972,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[743,739,22438,4957],"tags":[1317,872,3931,2002,50103,8801],"class_list":["post-117977","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-immonews-fr","category-projects","category-trends-fr","category-region-zurich","tag-eth-zuerich-fr","tag-immoinvest-fr","tag-immonews-fr","tag-news-fr","tag-schichtmaterial-fr","tag-verbundstoffe-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Des chercheurs de l'ETH Zurich ont mis au point un nouveau mat\u00e9riau stratifi\u00e9 qui est \u00e0 la fois rigide et porteur, mais aussi tr\u00e8s amortissant. Ce mat\u00e9riau composite pourrait trouver des applications dans de nombreux domaines, notamment la construction, l'ing\u00e9nierie et l'a\u00e9ronautique.","autor":"ce\/hs","ort":"Z\u00fcrich","bildunterschrift":"","zusammenfassung":"","bild_im_grid":false,"gallerie":"","newsim":""},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Des chercheurs de l&#039;ETH Zurich ont mis au point un nouveau mat\u00e9riau stratifi\u00e9 qui est \u00e0 la fois rigide et porteur, mais aussi tr\u00e8s amortissant. 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