{"id":9271,"date":"2024-05-12T15:53:44","date_gmt":"2024-05-12T13:53:44","guid":{"rendered":"https:\/\/info.formfedern.com\/diagramme-contrainte-deformation-acier-a-ressorts\/"},"modified":"2024-05-14T14:05:35","modified_gmt":"2024-05-14T12:05:35","slug":"diagramme-contrainte-deformation-acier-a-ressorts","status":"publish","type":"post","link":"https:\/\/info.formfedern.com\/fr\/diagramme-contrainte-deformation-acier-a-ressorts\/","title":{"rendered":"Diagramme contrainte-d\u00e9formation acier \u00e0 ressorts"},"content":{"rendered":"<p>Le diagramme contrainte-d\u00e9formation permet de d\u00e9finir la capacit\u00e9 de charge statique de l&rsquo;<a href=\"https:\/\/info.formfedern.com\/federstahlbleche-eigenschaften\/\">acier \u00e0 ressorts<\/a>. Le diagramme contrainte-d\u00e9formation montre le comportement en d\u00e9formation de l&rsquo;acier \u00e0 ressort jusqu&rsquo;\u00e0 la rupture pendant l&rsquo;essai de traction. Pour le concepteur, le diagramme contrainte-d\u00e9formation est une donn\u00e9e de conception importante, car il peut lire sur ce diagramme quelle force la t\u00f4le ou le feuillard d&rsquo;acier \u00e0 ressorts peut absorber lors du <a href=\"https:\/\/info.formfedern.com\/biegeradius-metallumformung\/\">formage<\/a> pour la fabrication de <a href=\"https:\/\/info.formfedern.com\/formfedern\/\">ressorts de forme<\/a>, de <a href=\"https:\/\/info.formfedern.com\/federclips\/\">clips \u00e0 ress<\/a>orts, d&rsquo;<a href=\"https:\/\/info.formfedern.com\/federklammern\/\">agrafes \u00e0 ressorts<\/a>, de <a href=\"https:\/\/info.formfedern.com\/kontaktfedern\/\">ressorts de contact<\/a> et de <a href=\"https:\/\/info.formfedern.com\/federscheiben-klemmscheiben\/\">rondelles \u00e9lastiques<\/a> jusqu&rsquo;\u00e0 ce qu&rsquo;il se d\u00e9forme de mani\u00e8re permanente.<\/p>\n<p>&nbsp;<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/info.formfedern.com\/fr\/diagramme-contrainte-deformation-acier-a-ressorts\/#Les_phases_du_diagramme_contrainte-deformation_pour_lacier_a_ressorts\" >Les phases du diagramme contrainte-d\u00e9formation pour l&rsquo;acier \u00e0 ressorts<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/info.formfedern.com\/fr\/diagramme-contrainte-deformation-acier-a-ressorts\/#La_limite_delasticite_de_02\" >La limite d&rsquo;\u00e9lasticit\u00e9 de 0,2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/info.formfedern.com\/fr\/diagramme-contrainte-deformation-acier-a-ressorts\/#Caracteristiques_des_materiaux\" >Caract\u00e9ristiques des mat\u00e9riaux<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Les_phases_du_diagramme_contrainte-deformation_pour_lacier_a_ressorts\"><\/span>Les phases du diagramme contrainte-d\u00e9formation pour l&rsquo;acier \u00e0 ressorts<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Les quatre phases du diagramme contrainte-d\u00e9formation permettent de lire la <strong>limite de d\u00e9formation \u00e9lastique<\/strong> (limite d&rsquo;\u00e9lasticit\u00e9 \u00ab\u00a0Rp\u00a0\u00bb), la <strong>limite de d\u00e9formation plastique<\/strong> (r\u00e9sistance \u00e0 la traction \u00ab\u00a0Rm\u00a0\u00bb), la <strong>zone de r\u00e9tr\u00e9cissement<\/strong> et la <strong>limite de rupture<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2960\" src=\"https:\/\/info.formfedern.com\/wp-content\/uploads\/Spannungs-Dehnungs-Diagramm_600.png\" alt=\"Spannungs-Dehnungs-Diagramm | Gutekunst Formfedern\" width=\"600\" height=\"560\" data-wp-pid=\"2960\" srcset=\"https:\/\/info.formfedern.com\/wp-content\/uploads\/Spannungs-Dehnungs-Diagramm_600.png 600w, https:\/\/info.formfedern.com\/wp-content\/uploads\/Spannungs-Dehnungs-Diagramm_600-300x280.png 300w, https:\/\/info.formfedern.com\/wp-content\/uploads\/Spannungs-Dehnungs-Diagramm_600-214x200.png 214w, https:\/\/info.formfedern.com\/wp-content\/uploads\/Spannungs-Dehnungs-Diagramm_600-200x187.png 200w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><br \/>\nDans la phase de <strong>d\u00e9formation \u00e9lastique<\/strong>, l&rsquo;acier \u00e0 ressort s&rsquo;allonge proportionnellement (droite de Hooke) \u00e0 la tension appliqu\u00e9e. Cet allongement est \u00e9galement appel\u00e9 d\u00e9formation lin\u00e9aire-\u00e9lastique ou proportionnelle. Le pourcentage d&rsquo;allongement est affich\u00e9 sur l&rsquo;axe horizontal et la tension correspondante sur l&rsquo;axe vertical. Ce comportement \u00e0 la d\u00e9formation des mat\u00e9riaux a \u00e9t\u00e9 d\u00e9crit d\u00e8s 1768 par le savant anglais Robert Hooke, dans la <a href=\"https:\/\/de.wikipedia.org\/wiki\/Hookesches_Gesetz\" target=\"_blank\" rel=\"noopener noreferrer\">loi de Hooke<\/a>. Lorsque la <strong>d\u00e9formation \u00e9lastique<\/strong> maximale est atteinte, \u00e0 laquelle l&rsquo;acier \u00e0 ressort revient \u00e0 sa position initiale sans se d\u00e9former, on parle de <a href=\"https:\/\/de.wikipedia.org\/wiki\/Streckgrenze\" target=\"_blank\" rel=\"noopener noreferrer\">limite d&rsquo;\u00e9lasticit\u00e9 (Rp)<\/a>. La limite d&rsquo;\u00e9lasticit\u00e9 est une limite flottante. Au-del\u00e0 de cette limite d&rsquo;\u00e9lasticit\u00e9, il y a toujours une d\u00e9formation dans les phases suivantes, mais l&rsquo;allongement est ici sup\u00e9rieur \u00e0 la tension croissante, ce qui entra\u00eene une <strong>d\u00e9formation plastique<\/strong> et un <strong>r\u00e9tr\u00e9cissement<\/strong> jusqu&rsquo;\u00e0 la <strong>rupture<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"La_limite_delasticite_de_02\"><\/span><a href=\"https:\/\/info.formfedern.com\/wp-content\/uploads\/\/Dehngrenze_0.2_600px-300x293.png\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2953 size-medium alignright\" src=\"https:\/\/info.formfedern.com\/wp-content\/uploads\/\/Dehngrenze_0.2_600px-300x293.png\" alt=\"Limite d'\u00e9lasticit\u00e9 0,2 - Gutekunst Formfedern\" width=\"300\" height=\"293\" data-wp-pid=\"2953\" srcset=\"https:\/\/info.formfedern.com\/wp-content\/uploads\/Dehngrenze_0.2_600px-300x293.png 300w, https:\/\/info.formfedern.com\/wp-content\/uploads\/Dehngrenze_0.2_600px.png 600w, https:\/\/info.formfedern.com\/wp-content\/uploads\/Dehngrenze_0.2_600px-205x200.png 205w, https:\/\/info.formfedern.com\/wp-content\/uploads\/Dehngrenze_0.2_600px-200x195.png 200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>La limite d&rsquo;\u00e9lasticit\u00e9 de 0,2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Il existe des <a href=\"https:\/\/info.formfedern.com\/federstahlbleche-eigenschaften\/\" target=\"_blank\" rel=\"noopener noreferrer\">mat\u00e9riaux pour ressorts<\/a> dont la limite d&rsquo;\u00e9lasticit\u00e9 ne peut pas \u00eatre clairement d\u00e9termin\u00e9e. Cela concerne surtout les aciers inoxydables pour ressorts. La <a href=\"https:\/\/de.wikipedia.org\/wiki\/Streckgrenze\" target=\"_blank\" rel=\"noopener noreferrer\">limite d&rsquo;\u00e9lasticit\u00e9Rp0,2<\/a> est indiqu\u00e9e ici \u00e0 titre d&rsquo;alternative. Pour cela, on trace une parall\u00e8le \u00e0 la droite de Hooke \u00e0 une distance de 0,2%. Cette contrainte au point d&rsquo;intersection correspond \u00e0 la limite d&rsquo;\u00e9lasticit\u00e9 Rp0,2 en remplacement de la limite d&rsquo;\u00e9lasticit\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Caracteristiques_des_materiaux\"><\/span>Caract\u00e9ristiques des mat\u00e9riaux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Parmi les caract\u00e9ristiques des mat\u00e9riaux, la <a href=\"https:\/\/info.formfedern.com\/federstahlbleche-eigenschaften\/\">r\u00e9sistance \u00e0 la traction (Rm)<\/a> est le plus souvent utilis\u00e9e. Cette valeur est la base de tout calcul de ressort et d\u00e9crit la capacit\u00e9 de charge maximale d&rsquo;un acier \u00e0 ressort. Il faut toutefois tenir compte du fait que l&rsquo;acier \u00e0 ressort se d\u00e9forme plastiquement avant m\u00eame d&rsquo;avoir atteint la r\u00e9sistance \u00e0 la traction ! La limite d&rsquo;\u00e9lasticit\u00e9 (Rp) et la limite d&rsquo;allongement (Rp0,2) sont normalement indiqu\u00e9es sur les fiches techniques des fabricants ou peuvent \u00eatre demand\u00e9es aupr\u00e8s des fabricants de mat\u00e9riaux.<\/p>\n<p>&nbsp;<\/p>\n<p>Vous avez besoin d&rsquo;informations plus d\u00e9taill\u00e9es sur le diagramme contrainte-d\u00e9formation et les caract\u00e9ristiques des mat\u00e9riaux ? Pas de probl\u00e8me, vous pouvez joindre le service technique de <a href=\"https:\/\/info.formfedern.com\/gutekunst-stahlverformung\/\">Gutekunst Formfedern GmbH<\/a> par t\u00e9l\u00e9phone au (+49) 07445 85160 ou <a href=\"mailto:info@gutekunst-formfedern.de\" target=\"_blank\" rel=\"noopener noreferrer\">info@gutekunst-formfedern.de<\/a>.<\/p>\n<p>Si vous \u00eates \u00e9galement int\u00e9ress\u00e9 par des <a href=\"https:\/\/info.formfedern.com\/formfedern\/\">ressorts de forme<\/a>, des <a href=\"https:\/\/info.formfedern.com\/federclips\/\">clips \u00e0 ressort<\/a>, des <a href=\"https:\/\/info.formfedern.com\/federklammern\/\">agrafes \u00e0 ressort<\/a>, des <a href=\"https:\/\/info.formfedern.com\/kontaktfedern\/\">ressorts de contact<\/a> et des <a href=\"https:\/\/info.formfedern.com\/federscheiben-klemmscheiben\/\">rondelles \u00e9lastiques<\/a> personnalis\u00e9s, il vous suffit d&rsquo;utiliser notre <a href=\"https:\/\/info.formfedern.com\/federnanfrage\/\" target=\"_blank\" rel=\"noopener\">formulaire de demande<\/a>. Nous vous ferons une offre sans engagement dans un bref d\u00e9lai.<\/p>\n<p>&nbsp;<\/p>\n<a class=\"maxbutton-10 maxbutton maxbutton-spring-request-fr\" target=\"_blank\" rel=\"noopener\" href=\"\/fr\/demande-de-ressorts\/\"><span class='mb-text'>Demande<\/span><\/a>\n<p>&nbsp;<\/p>\n<p><em>Information additionnelle:<\/em><\/p>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/federstahlbleche-eigenschaften\/\">Propri\u00e9t\u00e9s des t\u00f4les d&rsquo;acier \u00e0 ressort<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/scherfestigkeit-stahl\/\">R\u00e9sistance au cisaillement de l&rsquo;acier<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/federstahlband\/\">Bande d&rsquo;acier \u00e0 ressort Utilisation<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/biegeradius-metallumformung\/\">Rayon de courbure dans le formage des m\u00e9taux<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/biegeverfahren-metallumformung\/\">Processus de pliage dans le formage des m\u00e9taux<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/oberflaechenbehandlung-metall\/\">Traitement de surface du m\u00e9tal<\/a><\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/info.formfedern.com\/federbandstahl-ab-lager\/\">T\u00f4les d&rsquo;acier \u00e0 ressort et t\u00f4les d&rsquo;acier \u00e0 ressort en stock<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Le diagramme contrainte-d\u00e9formation permet de d\u00e9finir la capacit\u00e9 de charge statique de l&rsquo;acier \u00e0 ressorts. Le diagramme contrainte-d\u00e9formation montre le comportement en d\u00e9formation de l&rsquo;acier \u00e0 ressort jusqu&rsquo;\u00e0 la rupture pendant l&rsquo;essai de traction. Pour le concepteur, le diagramme contrainte-d\u00e9formation<\/p>\n","protected":false},"author":6,"featured_media":9273,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[718,724,725],"tags":[3020,1104,952,3019,3021,3022,2522,852,518],"class_list":["post-9271","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-connaissance","category-materiel-fr","category-ressorts-a-lames","tag-diagramme-contrainte-deformation","tag-federstahl-fr","tag-kontaktfedern-fr","tag-limite-delasticite","tag-limite-delasticite-fr","tag-limites-de-deformation","tag-resistance-a-la-traction","tag-ressorts-de-forme","tag-streckgrenze"],"_links":{"self":[{"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/posts\/9271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/comments?post=9271"}],"version-history":[{"count":4,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/posts\/9271\/revisions"}],"predecessor-version":[{"id":10943,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/posts\/9271\/revisions\/10943"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/media\/9273"}],"wp:attachment":[{"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/media?parent=9271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/categories?post=9271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/info.formfedern.com\/fr\/wp-json\/wp\/v2\/tags?post=9271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}