{"id":294845,"date":"2021-06-15T09:00:00","date_gmt":"2021-06-15T07:00:00","guid":{"rendered":"https:\/\/innovationorigins.com\/?p=294845"},"modified":"2021-06-15T09:00:00","modified_gmt":"2021-06-15T07:00:00","slug":"solution-using-friction-that-doesnt-go-by-the-book","status":"publish","type":"post","link":"https:\/\/ioplus.nl\/archive\/en\/solution-using-friction-that-doesnt-go-by-the-book\/","title":{"rendered":"Solution for friction that doesn&#8217;t go by the book"},"content":{"rendered":"\n<p id=\"block-9c38e8a8-d083-442e-ae03-5d166d63c9fb\">Scientists in France and Switzerland have designed a model that can predict the frictional behavior of sheets of paper, such as those found in a book. The research was started at the<em> Flexible Structures Laboratory <\/em>of the <em>\u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne<\/em> in Switzerland.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"block-6c8fc975-06d6-446f-817b-aec5b3765712\">Frictional interaction<\/h3>\n\n\n\n<p id=\"block-5b6830b9-09bb-49a0-ae40-ac180cc40762\">&#8220;Initially, we thought that the force required to bend two sheets was simply twice that of one sheet,&#8221; says Samuel Poincloux. He is a post doc student, and one of the researchers who is involved. &#8220;But we found that when you stack multiple sheets on top of each other, that equation is no longer linear. That&#8217;s because the frictional interaction between the sheets. This means that the rate of resistance to deformation increases faster than the number of sheets,&#8221; Poincloux says in the video below:<br><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Modeling the friction between pages in a book\" width=\"1290\" height=\"726\" src=\"https:\/\/www.youtube.com\/embed\/5Sn4aYDZqTg?start=9&#038;feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p id=\"block-5d13a7a8-eee9-4874-be85-ae1cd1889082\">Poincloux and his colleagues knew that energy is lost when the sheets deform. Yet they did not know exactly how much. Existing computer models do not take friction into account in configurations with a lot of tangents. &#8220;Bending a book creates frictional forces between the individual sheets. That friction cannot be ignored,&#8221; says Poincloux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"block-c4fb9085-cf92-406b-8d98-c939d111e960\">European collaboration<\/h3>\n\n\n\n<p id=\"block-baf55469-624c-40ef-ae9d-4ff26b4189f2\">Following that, the Swiss researchers contacted the <em>\u00c9cole Polytechnique<\/em> in Palaiseau (south of Paris), a good example of European collaboration. At the French research institution, Basile Audoly, a specialist in elasticity and geometry, was the one who helped his colleagues model highly elastic structures. Eventually, the research team was able to predict the results of their laboratory experiments using a new theory that tales the effect of friction into account. &#8220;Our work could serve as a basis for characterizing the behavior of multilayer materials such as graphene,&#8221; Poincloux explains.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"block-f577e2a8-4d0f-427d-b25a-d72c750b1c87\">Dissipative energy<\/h3>\n\n\n\n<p>This mechanism of dissipative energy (energy lost to the environment) could be used to design new sets of cheap and efficient dampers in machinery and devices.<\/p>\n\n\n\n<p id=\"block-5b02df29-eca0-4722-92ad-a123284adeee\">The research was published in <a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.126.218004\">Physical Review Letters<\/a>, an American scientific journal dedicated to the field of physics.<\/p>\n\n\n\n<p id=\"block-7354ec89-3d05-43b2-83e6-cf88c39d944e\"><strong><em>Read more about the importance of <a href=\"https:\/\/innovationorigins.com\/en\/investing-in-innovation-and-research-is-key-to-climbing-out-of-the-crisis\/\">collaboration between neighboring countries<\/a> in Europe.<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scientists in France and Switzerland have designed a model that can predict the frictional behavior of sheets of paper, such as those found in a book. The research was started at the Flexible Structures Laboratory of the \u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne in Switzerland. Frictional interaction &#8220;Initially, we thought that the force required to bend [&hellip;]<\/p>\n","protected":false},"author":1788,"featured_media":514751,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[26049],"tags":[62375,56521,39108,62382,62377,62380],"location":[40146],"article_type":[36684],"serie":[],"archives":[],"internal_archives":[],"reboot-archive":[],"class_list":["post-294845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mobility","tag-basile-audoly","tag-ecole-polytechnique-federale-de-lausanne","tag-ecole-polytechnique-paris","tag-friction","tag-physical-review-letters","tag-samuel-poincloux","location-france","article_type-news"],"blocksy_meta":[],"acf":{"subtitle":"Scientists have developed a new theoretical model for predicting elastic friction behavior. This could be useful for the design of dampers.","text_display_homepage":false},"author_meta":{"display_name":"Ewout Kieckens","author_link":"https:\/\/ioplus.nl\/archive\/author\/ewout-kieckens\/"},"featured_img":"https:\/\/ioplus.nl\/archive\/wp-content\/uploads\/2022\/04\/wrijving.jpg","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">Mobility<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Mobility<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">Basile Audoly<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">\u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">\u00c9cole Polytechnique Paris<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">friction<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">Physical Review Letters<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/mobility\/\" class=\"advgb-post-tax-term\">Samuel Poincloux<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Basile Audoly<\/span>","<span class=\"advgb-post-tax-term\">\u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne<\/span>","<span class=\"advgb-post-tax-term\">\u00c9cole Polytechnique Paris<\/span>","<span class=\"advgb-post-tax-term\">friction<\/span>","<span class=\"advgb-post-tax-term\">Physical Review Letters<\/span>","<span class=\"advgb-post-tax-term\">Samuel Poincloux<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Posted 5 years ago","modified":"Updated 5 years ago"},"absolute_dates":{"created":"Posted on June 15, 2021","modified":"Updated on June 15, 2021"},"absolute_dates_time":{"created":"Posted on June 15, 2021 9:00 am","modified":"Updated on June 15, 2021 9:00 am"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/posts\/294845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/users\/1788"}],"replies":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/comments?post=294845"}],"version-history":[{"count":0,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/posts\/294845\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media\/514751"}],"wp:attachment":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media?parent=294845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/categories?post=294845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/tags?post=294845"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/location?post=294845"},{"taxonomy":"article_type","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/article_type?post=294845"},{"taxonomy":"serie","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/serie?post=294845"},{"taxonomy":"archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/archives?post=294845"},{"taxonomy":"internal_archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/internal_archives?post=294845"},{"taxonomy":"reboot-archive","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/reboot-archive?post=294845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}