{"id":21282,"date":"2026-06-29T03:12:07","date_gmt":"2026-06-29T03:12:07","guid":{"rendered":"https:\/\/zjaluminum-cnc.com\/blog\/module-de-cisaillement-de-laluminium\/"},"modified":"2026-07-22T07:46:32","modified_gmt":"2026-07-22T07:46:32","slug":"module-de-cisaillement-de-laluminium","status":"publish","type":"post","link":"https:\/\/zjaluminum-cnc.com\/fr\/blog\/module-de-cisaillement-de-laluminium\/","title":{"rendered":"Module de cisaillement de l\u2019aluminium"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21282\" class=\"elementor elementor-21282 elementor-20680\" data-elementor-post-type=\"post\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-a45379b e-flex e-con-boxed e-con e-parent\" data-id=\"a45379b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b66bc89 elementor-widget elementor-widget-text-editor\" data-id=\"b66bc89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"isSelectedEnd\">Le module de cisaillement de l\u2019aluminium, \u00e9galement appel\u00e9 module de rigidit\u00e9 (G), mesure la r\u00e9sistance d\u2019un mat\u00e9riau \u00e0 la d\u00e9formation par cisaillement.<\/p><p class=\"isSelectedEnd\">L\u2019aluminium pr\u00e9sente un module de cisaillement d\u2019environ <strong>26 GPa (3.8 \u00d7 10\u2076 psi)<\/strong>, mais la valeur exacte varie l\u00e9g\u00e8rement selon l\u2019alliage, l\u2019\u00e9tat m\u00e9tallurgique et le proc\u00e9d\u00e9 de fabrication.<\/p><p class=\"isSelectedEnd\">Par exemple, les alliages courants tels que le 6061-T6 pr\u00e9sentent un module de cisaillement d\u2019environ <strong>26 GPa<\/strong>, tandis que celui du 7075-T6 est l\u00e9g\u00e8rement sup\u00e9rieur, \u00e0 environ <strong>26.9 GPa<\/strong>. L\u2019aluminium 2024-T3 \u00e0 haute r\u00e9sistance peut atteindre environ <strong>28 GPa<\/strong>.<\/p><p>Cet article pr\u00e9sente le module de cisaillement de l\u2019aluminium, les valeurs typiques des alliages courants, les facteurs d\u2019influence, les m\u00e9thodes d\u2019essai et des comparaisons avec d\u2019autres m\u00e9taux.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7b452a elementor-widget elementor-widget-text-editor\" data-id=\"e7b452a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>D\u00e9finition du module de cisaillement<\/h2><p class=\"isSelectedEnd\">Le module de cisaillement d\u00e9finit la relation lin\u00e9aire entre la contrainte de cisaillement et la d\u00e9formation de cisaillement dans le domaine \u00e9lastique :<\/p><p class=\"isSelectedEnd\" style=\"text-align: center;\"><strong>G = \u03c4 \/ \u03b3<\/strong><\/p><p class=\"isSelectedEnd\">Avec :<\/p><ul data-spread=\"false\"><li>G = module de cisaillement ou module de rigidit\u00e9<\/li><li>\u03c4 = contrainte de cisaillement<\/li><li>\u03b3 = d\u00e9formation de cisaillement<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-056c803 elementor-widget elementor-widget-image\" data-id=\"056c803\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"300\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Schematic-diagram-of-shear-stress-and-strain.webp\" class=\"attachment-large size-large wp-image-21283\" alt=\"Sch\u00e9ma de la contrainte et de la d\u00e9formation de cisaillement\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Schematic-diagram-of-shear-stress-and-strain.webp 600w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Schematic-diagram-of-shear-stress-and-strain-300x150.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Sch\u00e9ma de la contrainte et de la d\u00e9formation de cisaillement<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa9bee5 elementor-widget elementor-widget-text-editor\" data-id=\"aa9bee5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"isSelectedEnd\">Le module de cisaillement d\u00e9crit la r\u00e9sistance d\u2019un mat\u00e9riau au changement de forme lorsque des forces agissent parall\u00e8lement \u00e0 sa section transversale.<\/p><p class=\"isSelectedEnd\">Un module de cisaillement \u00e9lev\u00e9 signifie que le mat\u00e9riau r\u00e9siste mieux \u00e0 la d\u00e9formation angulaire. Un module plus faible signifie qu\u2019il se tord, se courbe ou se d\u00e9forme plus facilement sous une charge de cisaillement.<\/p><p class=\"isSelectedEnd\">Pour les mat\u00e9riaux isotropes, le module de cisaillement est li\u00e9 au module de Young et au coefficient de Poisson :<\/p><p class=\"isSelectedEnd\" style=\"text-align: center;\"><strong>G = E \/ <span class=\"text-token-text-primary cursor-text rounded-sm\" data-placeholder-token=\"true\">[2(1 + \u03bd)]<\/span><\/strong><\/p><p class=\"isSelectedEnd\">Avec :<\/p><ul data-spread=\"false\"><li>E = module de Young<\/li><li>\u03bd = coefficient de Poisson<\/li><li>G = module de cisaillement<\/li><\/ul><p class=\"isSelectedEnd\">Comme l\u2019aluminium pr\u00e9sente un module de Young d\u2019environ <strong>69\u201370 GPa<\/strong> et un coefficient de Poisson proche de 0,33, son module de cisaillement est g\u00e9n\u00e9ralement voisin de <strong>26 GPa<\/strong>.<\/p><p>Le module de cisaillement ne doit pas \u00eatre confondu avec la r\u00e9sistance au cisaillement. Le module de cisaillement mesure la rigidit\u00e9 \u00e9lastique sous cisaillement. La r\u00e9sistance au cisaillement indique le niveau de contrainte auquel le mat\u00e9riau commence \u00e0 rompre ou \u00e0 se d\u00e9former de fa\u00e7on permanente en cisaillement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4cf2ee elementor-widget elementor-widget-text-editor\" data-id=\"f4cf2ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Module de cisaillement de l\u2019aluminium pur<\/h2><p class=\"isSelectedEnd\">L\u2019aluminium pur pr\u00e9sente g\u00e9n\u00e9ralement un module de cisaillement d\u2019environ <strong>25\u201326 GPa<\/strong>.<\/p><p class=\"isSelectedEnd\">Ses principales caract\u00e9ristiques sont :<\/p><ul data-spread=\"false\"><li>Comportement lin\u00e9aire \u00e9lastique net sous de faibles charges de cisaillement<\/li><li>Rigidit\u00e9 au cisaillement inf\u00e9rieure \u00e0 celle de l\u2019acier, du cuivre et du titane<\/li><li>Rigidit\u00e9 au cisaillement sup\u00e9rieure \u00e0 celle du magn\u00e9sium<\/li><li>Bon rapport rigidit\u00e9\/poids gr\u00e2ce \u00e0 une faible masse volumique<\/li><li>L\u00e9g\u00e8res variations selon la puret\u00e9, le proc\u00e9d\u00e9 et la m\u00e9thode d\u2019essai<\/li><\/ul><p class=\"isSelectedEnd\">L\u2019aluminium pur est tendre et tr\u00e8s ductile. Sa r\u00e9sistance au cisaillement est nettement inf\u00e9rieure \u00e0 celle de nombreux alliages d\u2019aluminium, mais son module de cisaillement reste proche de celui de la plupart des nuances commerciales.<\/p><p>Cela s\u2019explique par le fait que l\u2019alliage et le traitement thermique modifient beaucoup plus la r\u00e9sistance que le module d\u2019\u00e9lasticit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff64b42 elementor-widget elementor-widget-text-editor\" data-id=\"ff64b42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Module de cisaillement des alliages d\u2019aluminium<\/h2><p class=\"isSelectedEnd\">La plupart des alliages d\u2019aluminium pr\u00e9sentent un module de cisaillement <strong>compris entre 25 et 28 GPa<\/strong>. L\u2019\u00e9cart entre les alliages courants est g\u00e9n\u00e9ralement faible.<\/p><p>Le tableau suivant indique les valeurs typiques des alliages d\u2019aluminium fr\u00e9quemment utilis\u00e9s.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d21dc07 elementor-widget elementor-widget-text-editor\" data-id=\"d21dc07\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div style=\"width: 100%; max-width: 100%; overflow: hidden;\">\n<table style=\"width: 100%; max-width: 100%; border-collapse: collapse; table-layout: fixed; font-family: Arial,sans-serif; font-size: clamp(11px,2.8vw,15px); line-height: 1.5; color: #111827; background: #fff;\"><colgroup> <col style=\"width: 18%;\" \/> <col style=\"width: 13%;\" \/> <col style=\"width: 18%;\" \/> <col style=\"width: 51%;\" \/> <\/colgroup>\n<thead>\n<tr>\n<th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Alliage<\/th>\n<th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">\u00c9tat m\u00e9tallurgique<\/th>\n<th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Module de cisaillement<\/th>\n<th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Remarques<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Aluminium pur<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">\u2014<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">25\u201326 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Valeur g\u00e9n\u00e9rale pour l\u2019aluminium commercialement pur<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fb;\">\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">1100<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">O<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">26.0 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Aluminium de haute puret\u00e9 pr\u00e9sentant une bonne aptitude au formage<\/td>\n<\/tr>\n<tr>\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">6061<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">T6<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">26.0 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Alliage courant pour les structures et l\u2019usinage CNC<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fb;\">\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">6063<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">T6<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">25.8 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Largement utilis\u00e9 pour les profil\u00e9s architecturaux extrud\u00e9s<\/td>\n<\/tr>\n<tr>\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">6082<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">T6<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">26.0 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Alliage structurel couramment utilis\u00e9 en Europe<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fb;\">\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">7075<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">T6 \/ T651<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">26.9 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Alliage d\u2019aluminium \u00e0 haute r\u00e9sistance pour l\u2019a\u00e9ronautique<\/td>\n<\/tr>\n<tr>\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">2024<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">T3 \/ T4<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">28.0 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Alliage de qualit\u00e9 a\u00e9ronautique pr\u00e9sentant une rigidit\u00e9 au cisaillement relativement \u00e9lev\u00e9e<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fb;\">\n<td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">5083<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">H116<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">26.4 GPa<\/td>\n<td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; vertical-align: top; overflow-wrap: break-word;\">Alliage de qualit\u00e9 marine offrant une excellente r\u00e9sistance \u00e0 la corrosion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ad4520 elementor-widget elementor-widget-text-editor\" data-id=\"2ad4520\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"isSelectedEnd\">Le tableau montre que les alliages 2024 et 7075 pr\u00e9sentent des modules de cisaillement l\u00e9g\u00e8rement sup\u00e9rieurs \u00e0 ceux des 6061 et 6063.<\/p><p class=\"isSelectedEnd\">L\u2019\u00e9cart reste toutefois limit\u00e9. Dans de nombreuses applications pratiques, la g\u00e9om\u00e9trie de la pi\u00e8ce influence davantage la rigidit\u00e9 en torsion que la faible diff\u00e9rence de module de cisaillement entre les alliages d\u2019aluminium.<\/p><p>Le traitement thermique a une influence limit\u00e9e sur le module de cisaillement. Il modifie fortement la limite d\u2019\u00e9lasticit\u00e9, la r\u00e9sistance \u00e0 la traction, la duret\u00e9 et la r\u00e9sistance au cisaillement, mais la rigidit\u00e9 \u00e9lastique reste relativement stable.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f7f994 elementor-widget elementor-widget-image\" data-id=\"2f7f994\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"338\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Chart-comparing-the-shear-modulus-of-6061-6063-6082-5083-7075-and-2024-aluminum-alloys.webp\" class=\"attachment-large size-large wp-image-21285\" alt=\"Graphique comparant le module de cisaillement des alliages d\u2019aluminium 6061, 6063, 6082, 5083, 7075 et 2024\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Chart-comparing-the-shear-modulus-of-6061-6063-6082-5083-7075-and-2024-aluminum-alloys.webp 600w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Chart-comparing-the-shear-modulus-of-6061-6063-6082-5083-7075-and-2024-aluminum-alloys-300x169.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-116528a elementor-widget elementor-widget-text-editor\" data-id=\"116528a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Comparaison du module de cisaillement : aluminium et autres m\u00e9taux<\/h2><p class=\"isSelectedEnd\">L\u2019aluminium pr\u00e9sente un module de cisaillement inf\u00e9rieur \u00e0 celui de la plupart des m\u00e9taux de structure. Il se d\u00e9forme donc davantage sous une m\u00eame contrainte de cisaillement.<\/p><p class=\"isSelectedEnd\">L\u2019aluminium est toutefois beaucoup plus l\u00e9ger que l\u2019acier, le cuivre et le titane. Sa faible masse volumique permet aux concepteurs d\u2019utiliser des sections plus grandes tout en maintenant un composant l\u00e9ger.<\/p><p>Le tableau suivant compare l\u2019aluminium \u00e0 plusieurs m\u00e9taux d\u2019ing\u00e9nierie courants.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-228e0cd elementor-widget elementor-widget-text-editor\" data-id=\"228e0cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div style=\"width: 100%; max-width: 100%; overflow: hidden;\"><table style=\"width: 100%; max-width: 100%; border-collapse: collapse; table-layout: fixed; font-family: Arial,sans-serif; font-size: clamp(11px,2.8vw,15px); line-height: 1.5; color: #111827; background: #fff;\"><colgroup> <col style=\"width: 20%;\" \/> <col style=\"width: 30%;\" \/> <col style=\"width: 32%;\" \/> <col style=\"width: 18%;\" \/> <\/colgroup><thead><tr><th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Mat\u00e9riau<\/th><th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Module de cisaillement typique<\/th><th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Module de cisaillement (\u00d710<sup>6<\/sup> psi)<\/th><th style=\"background: #0d3b66!important; color: #fff!important; text-align: center; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #d9e2ec; font-weight: bold; overflow-wrap: break-word;\">Masse volumique<\/th><\/tr><\/thead><tbody><tr><td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">Magn\u00e9sium<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">16\u201318 GPa<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">2.3\u20132.6<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">1.74 g\/cm\u00b3<\/td><\/tr><tr style=\"background: #f7f9fb;\"><td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">Aluminium<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">25\u201327 GPa<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">3.6\u20133.9<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">2.70 g\/cm\u00b3<\/td><\/tr><tr><td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">Titane<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">41 GPa<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">5.9<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">4.50 g\/cm\u00b3<\/td><\/tr><tr style=\"background: #f7f9fb;\"><td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">Cuivre<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">45 GPa<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">6.5<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">8.96 g\/cm\u00b3<\/td><\/tr><tr><td style=\"color: #0d3b66; font-weight: bold; padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">Acier au carbone<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">77\u201379 GPa<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">11.2\u201311.5<\/td><td style=\"padding: clamp(7px,1.8vw,13px) clamp(5px,1.6vw,14px); border: 1px solid #e5eaf0; overflow-wrap: break-word;\">7.85 g\/cm\u00b3<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9355bff elementor-widget elementor-widget-text-editor\" data-id=\"9355bff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"isSelectedEnd\">Le module de cisaillement de l\u2019aluminium repr\u00e9sente environ un tiers de celui de l\u2019acier au carbone. Un arbre, un tube ou un \u00e9l\u00e9ment structurel en aluminium se tordra donc davantage qu\u2019un \u00e9quivalent en acier de m\u00eame forme soumis \u00e0 la m\u00eame charge.<\/p><p>La diff\u00e9rence de poids est \u00e9galement importante. La masse volumique de l\u2019aluminium repr\u00e9sente environ un tiers de celle de l\u2019acier. L\u2019aluminium convient donc aux structures l\u00e9g\u00e8res pour lesquelles la r\u00e9duction de masse est d\u00e9terminante.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ecd1c9 elementor-widget elementor-widget-image\" data-id=\"4ecd1c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"450\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Comparison-chart-showing-aluminum-shear-modulus-versus-steel-copper-titanium-and-magnesium.webp\" class=\"attachment-large size-large wp-image-21286\" alt=\"Graphique comparant le module de cisaillement de l\u2019aluminium \u00e0 celui de l\u2019acier, du cuivre, du titane et du magn\u00e9sium\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Comparison-chart-showing-aluminum-shear-modulus-versus-steel-copper-titanium-and-magnesium.webp 600w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Comparison-chart-showing-aluminum-shear-modulus-versus-steel-copper-titanium-and-magnesium-300x225.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55cdb65 elementor-widget elementor-widget-text-editor\" data-id=\"55cdb65\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Facteurs influen\u00e7ant le module de cisaillement<\/h2><p class=\"isSelectedEnd\">Plusieurs facteurs peuvent influencer le module de cisaillement mesur\u00e9 de l\u2019aluminium :<\/p><ul data-spread=\"false\"><li>Composition de l\u2019alliage : des \u00e9l\u00e9ments tels que le magn\u00e9sium, le silicium, le cuivre, le zinc et le mangan\u00e8se peuvent l\u00e9g\u00e8rement modifier les propri\u00e9t\u00e9s \u00e9lastiques.<\/li><li>\u00c9tat m\u00e9tallurgique : le traitement thermique a un faible effet sur le module de cisaillement, mais un effet important sur la r\u00e9sistance.<\/li><li>Temp\u00e9rature : une temp\u00e9rature plus \u00e9lev\u00e9e r\u00e9duit g\u00e9n\u00e9ralement la rigidit\u00e9.<\/li><li>Proc\u00e9d\u00e9 de fabrication : l\u2019extrusion, le laminage, le forgeage ou la fonderie peuvent cr\u00e9er une l\u00e9g\u00e8re anisotropie.<\/li><li>Porosit\u00e9 et d\u00e9fauts : les pores de fonderie, fissures, d\u00e9fauts de soudure et inclusions peuvent r\u00e9duire la rigidit\u00e9 effective d\u2019une pi\u00e8ce.<\/li><li>Direction d\u2019essai : les produits lamin\u00e9s ou extrud\u00e9s peuvent pr\u00e9senter de faibles diff\u00e9rences entre les directions longitudinale et transversale.<\/li><\/ul><p class=\"isSelectedEnd\">Dans la plupart des calculs d\u2019ing\u00e9nierie courants, les alliages d\u2019aluminium sont consid\u00e9r\u00e9s comme ayant un module de cisaillement proche de 26 GPa.<\/p><p class=\"isSelectedEnd\">Pour les structures de pr\u00e9cision, les pi\u00e8ces a\u00e9ronautiques et les analyses par \u00e9l\u00e9ments finis, il convient d\u2019utiliser des donn\u00e9es propres \u00e0 l\u2019alliage et \u00e0 l\u2019\u00e9tat m\u00e9tallurgique.<\/p><h2>M\u00e9thodes d\u2019essai du module de cisaillement<\/h2><p class=\"isSelectedEnd\">Le module de cisaillement peut \u00eatre mesur\u00e9 ou estim\u00e9 selon plusieurs m\u00e9thodes.<\/p><h3>Essai de torsion<\/h3><p class=\"isSelectedEnd\">Une \u00e9prouvette est soumise \u00e0 un couple contr\u00f4l\u00e9. Le module de cisaillement est calcul\u00e9 \u00e0 partir de la relation entre le couple, l\u2019angle de torsion, la longueur et le moment quadratique polaire.<\/p><p class=\"isSelectedEnd\">Il s\u2019agit de l\u2019une des m\u00e9thodes les plus directes pour mesurer la rigidit\u00e9 au cisaillement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54be29a elementor-widget elementor-widget-image\" data-id=\"54be29a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"300\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Torsion-test-diagram-for-measuring-the-shear-modulus-of-aluminum.webp\" class=\"attachment-large size-large wp-image-21287\" alt=\"Sch\u00e9ma d\u2019essai de torsion pour mesurer le module de cisaillement de l\u2019aluminium\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Torsion-test-diagram-for-measuring-the-shear-modulus-of-aluminum.webp 600w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Torsion-test-diagram-for-measuring-the-shear-modulus-of-aluminum-300x150.webp 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Sch\u00e9ma d\u2019essai de torsion pour mesurer le module de cisaillement de l\u2019aluminium<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a20ffad elementor-widget elementor-widget-text-editor\" data-id=\"a20ffad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Essai de cisaillement<\/h3><p class=\"isSelectedEnd\">Un \u00e9chantillon est charg\u00e9 en cisaillement jusqu\u2019\u00e0 ce qu\u2019une d\u00e9formation apparaisse. Dans le domaine \u00e9lastique, le module de cisaillement peut \u00eatre calcul\u00e9 \u00e0 partir de la pente de la courbe contrainte-d\u00e9formation en cisaillement.<\/p><p class=\"isSelectedEnd\">Cette m\u00e9thode est couramment utilis\u00e9e pour caract\u00e9riser les mat\u00e9riaux.<\/p><h3>Contr\u00f4le ultrasonore<\/h3><p class=\"isSelectedEnd\">La vitesse des ondes ultrasonores permet de calculer les constantes \u00e9lastiques, dont le module de cisaillement. Cette m\u00e9thode non destructive est utile pour le contr\u00f4le qualit\u00e9 et la recherche.<\/p><h3>Calcul \u00e0 partir du module de Young et du coefficient de Poisson<\/h3><p class=\"isSelectedEnd\">Pour les mat\u00e9riaux isotropes, le module de cisaillement peut \u00eatre calcul\u00e9 avec la formule suivante :<\/p><p class=\"isSelectedEnd\">G = E \/ <span class=\"text-token-text-primary cursor-text rounded-sm\" data-placeholder-token=\"true\">[2(1 + \u03bd)]<\/span><\/p><p class=\"isSelectedEnd\">Pour l\u2019aluminium, avec E = 69 GPa et \u03bd = 0,33 :<\/p><p class=\"isSelectedEnd\">G \u2248 69 \/ <span class=\"text-token-text-primary cursor-text rounded-sm\" data-placeholder-token=\"true\">[2(1 + 0.33)]<\/span><\/p><p class=\"isSelectedEnd\">G \u2248 25.9 GPa<\/p><p class=\"isSelectedEnd\">C\u2019est pourquoi la plupart des alliages d\u2019aluminium sont donn\u00e9s avec un module de cisaillement proche de 26 GPa.<\/p><h2>Applications dans lesquelles le module de cisaillement est important<\/h2><p class=\"isSelectedEnd\">Le module de cisaillement est important lorsque les pi\u00e8ces en aluminium sont soumises \u00e0 une torsion ou \u00e0 une charge de cisaillement.<\/p><p class=\"isSelectedEnd\">Les applications typiques comprennent :<\/p><ul data-spread=\"false\"><li>Arbres et composants rotatifs<\/li><li>Tubes en aluminium et profil\u00e9s creux<\/li><li>Cadres structurels<\/li><li>Supports et connecteurs<\/li><li>Pi\u00e8ces a\u00e9ronautiques et automobiles<\/li><li>Composants en aluminium usin\u00e9s CNC<\/li><li>Profil\u00e9s en aluminium extrud\u00e9<\/li><li>Montages, supports et carters m\u00e9caniques<\/li><\/ul><p class=\"isSelectedEnd\">Dans ces applications, le module de cisaillement permet d\u2019estimer la torsion \u00e9lastique et la d\u00e9formation par cisaillement.<\/p><p class=\"isSelectedEnd\">Pour la plupart des pi\u00e8ces en aluminium, le module de cisaillement n\u2019est qu\u2019un param\u00e8tre de conception. Les ing\u00e9nieurs prennent \u00e9galement en compte la limite d\u2019\u00e9lasticit\u00e9, la r\u00e9sistance \u00e0 la fatigue, l\u2019\u00e9paisseur de paroi, la forme de la section, la direction de charge et la conception des assemblages.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-46d40f9 e-con-full e-flex e-con e-child\" data-id=\"46d40f9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-93138c9 elementor-widget__width-initial elementor-widget-mobile__width-initial elementor-widget elementor-widget-image\" data-id=\"93138c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Aluminum-Tube.webp\" class=\"attachment-large size-large wp-image-21288\" alt=\"Tube en aluminium\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Aluminum-Tube.webp 400w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Aluminum-Tube-300x225.webp 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Tube en aluminium<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-550cc71 elementor-widget__width-initial elementor-widget-mobile__width-initial elementor-widget elementor-widget-image\" data-id=\"550cc71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Aluminum-Coupling-Flexible-Connector.webp\" class=\"attachment-large size-large wp-image-21289\" alt=\"Accouplement flexible en aluminium\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Aluminum-Coupling-Flexible-Connector.webp 400w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Aluminum-Coupling-Flexible-Connector-300x225.webp 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Accouplement flexible en aluminium<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cbd5c8 elementor-widget__width-initial elementor-widget-mobile__width-initial elementor-widget elementor-widget-image\" data-id=\"5cbd5c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Machined-Aluminum-Bracket.webp\" class=\"attachment-large size-large wp-image-21290\" alt=\"Support en aluminium usin\u00e9\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Machined-Aluminum-Bracket.webp 400w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Machined-Aluminum-Bracket-300x225.webp 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Support en aluminium usin\u00e9<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-335d801 elementor-widget__width-initial elementor-widget-mobile__width-initial elementor-widget elementor-widget-image\" data-id=\"335d801\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Precision-CNC-Machined-Aluminum-Bracket.webp\" class=\"attachment-large size-large wp-image-21291\" alt=\"Support de pr\u00e9cision en aluminium usin\u00e9 CNC\" srcset=\"https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Precision-CNC-Machined-Aluminum-Bracket.webp 400w, https:\/\/zjaluminum-cnc.com\/wp-content\/uploads\/2026\/06\/Precision-CNC-Machined-Aluminum-Bracket-300x225.webp 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Support de pr\u00e9cision en aluminium usin\u00e9 CNC<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0cc1e3 elementor-widget elementor-widget-text-editor\" data-id=\"b0cc1e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Module de cisaillement et module de Young de l\u2019aluminium<\/h2><p class=\"isSelectedEnd\">Le module de Young et le module de cisaillement d\u00e9crivent tous deux la rigidit\u00e9 \u00e9lastique, mais s\u2019appliquent \u00e0 des types de chargement diff\u00e9rents.<\/p><p class=\"isSelectedEnd\">Le module de Young mesure la r\u00e9sistance \u00e0 la d\u00e9formation en traction ou en compression.<\/p><p class=\"isSelectedEnd\">Le module de cisaillement mesure la r\u00e9sistance \u00e0 la d\u00e9formation par cisaillement.<\/p><p class=\"isSelectedEnd\">Pour l\u2019aluminium :<\/p><ul data-spread=\"false\"><li>Module de Young : environ 69\u201370 GPa<\/li><li>Module de cisaillement : environ 25\u201327 GPa<\/li><li>Coefficient de Poisson : environ 0,33<\/li><\/ul><p class=\"isSelectedEnd\">Les deux valeurs sont li\u00e9es, mais elles ne sont pas interchangeables.<\/p><p class=\"isSelectedEnd\">Lorsqu\u2019un composant est \u00e9tir\u00e9 ou comprim\u00e9, on utilise g\u00e9n\u00e9ralement le module de Young. Lorsqu\u2019il est tordu ou charg\u00e9 en cisaillement, le module de cisaillement est plus pertinent.<\/p><h2>R\u00e9sum\u00e9<\/h2><p class=\"isSelectedEnd\"><strong>L\u2019aluminium pr\u00e9sente un module de cisaillement d\u2019environ 26 GPa, soit 3,8 \u00d7 10\u2076 psi.<\/strong><\/p><p class=\"isSelectedEnd\">Le module de cisaillement de l\u2019aluminium est nettement inf\u00e9rieur \u00e0 celui de l\u2019acier. Il se tord et se d\u00e9forme donc davantage sous une m\u00eame charge de cisaillement.<\/p><p class=\"isSelectedEnd\">La faible masse volumique de l\u2019aluminium lui conf\u00e8re toutefois un excellent rapport rigidit\u00e9\/poids. C\u2019est pourquoi il reste largement utilis\u00e9 dans les structures l\u00e9g\u00e8res, les profil\u00e9s extrud\u00e9s, les pi\u00e8ces usin\u00e9es CNC, les composants automobiles et les applications a\u00e9ronautiques.<\/p><p>Lors du choix d\u2019un aluminium soumis au cisaillement ou \u00e0 la torsion, le module de cisaillement doit \u00eatre \u00e9valu\u00e9 avec la r\u00e9sistance, la g\u00e9om\u00e9trie, l\u2019\u00e9paisseur de paroi, la temp\u00e9rature et le proc\u00e9d\u00e9 de fabrication.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-99f3066 e-con-full e-flex e-con e-child\" data-id=\"99f3066\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40912fb elementor-widget elementor-widget-heading\" data-id=\"40912fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Questions fr\u00e9quentes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bd639d elementor-widget elementor-widget-heading\" data-id=\"6bd639d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quel est le module de cisaillement de l\u2019aluminium ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3032dba elementor-widget elementor-widget-text-editor\" data-id=\"3032dba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le module de cisaillement de l\u2019aluminium est d\u2019environ 26 GPa, soit 3,8 \u00d7 10\u2076 psi. La valeur exacte d\u00e9pend de l\u2019alliage, de l\u2019\u00e9tat m\u00e9tallurgique et du proc\u00e9d\u00e9 de fabrication.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60db4c6 elementor-widget elementor-widget-heading\" data-id=\"60db4c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quel est le module de cisaillement de l\u2019aluminium 6061-T6 ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cac9790 elementor-widget elementor-widget-text-editor\" data-id=\"cac9790\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L\u2019aluminium 6061-T6 pr\u00e9sente un module de cisaillement (G) d\u2019environ 26 GPa, soit 3,77 \u00d7 10\u2076 psi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e340096 elementor-widget elementor-widget-heading\" data-id=\"e340096\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quel est le module de cisaillement de l\u2019aluminium 6063-T6 ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd5c3d6 elementor-widget elementor-widget-text-editor\" data-id=\"fd5c3d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L\u2019aluminium 6063-T6 pr\u00e9sente un module de cisaillement (G) d\u2019environ 25,8 GPa, soit 3,74 \u00d7 10\u2076 psi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-778d62d elementor-widget elementor-widget-heading\" data-id=\"778d62d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quel est le module de cisaillement de l\u2019aluminium 7075 ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb93b71 elementor-widget elementor-widget-text-editor\" data-id=\"cb93b71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L\u2019aluminium 7075-T6 pr\u00e9sente un module de cisaillement (G) d\u2019environ 26,9 GPa, soit 3,90 \u00d7 10\u2076 psi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-227c238 elementor-widget elementor-widget-heading\" data-id=\"227c238\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quel est le module de cisaillement de l\u2019aluminium 2024 ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a02e45a elementor-widget elementor-widget-text-editor\" data-id=\"a02e45a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les aluminiums 2024-T3 et 2024-T4 pr\u00e9sentent g\u00e9n\u00e9ralement un module de cisaillement (G) d\u2019environ 28 GPa, soit 4,06 \u00d7 10\u2076 psi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27a11aa elementor-widget elementor-widget-heading\" data-id=\"27a11aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Le module de cisaillement est-il identique \u00e0 la r\u00e9sistance au cisaillement ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6f0b47 elementor-widget elementor-widget-text-editor\" data-id=\"b6f0b47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Non. Le module de cisaillement mesure la r\u00e9sistance \u00e9lastique \u00e0 la d\u00e9formation par cisaillement. La r\u00e9sistance au cisaillement mesure la contrainte de cisaillement maximale qu\u2019un mat\u00e9riau peut supporter avant plastification ou rupture.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3455c00 elementor-widget elementor-widget-heading\" data-id=\"3455c00\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quelle est la relation entre E et G pour l\u2019aluminium ?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9bbb907 elementor-widget elementor-widget-text-editor\" data-id=\"9bbb907\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Pour les mat\u00e9riaux isotropes, G = E \/ <span class=\"text-token-text-primary cursor-text rounded-sm\" data-placeholder-token=\"true\">[2(1 + \u03bd)]<\/span>. Pour l\u2019aluminium, E vaut environ 69 GPa et le coefficient de Poisson environ 0,33 ; G vaut donc environ 26 GPa.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d55736 elementor-widget elementor-widget-text-editor\" data-id=\"9d55736\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>R\u00e9f\u00e9rences techniques<\/h2><p>[1] <a href=\"https:\/\/asm.matweb.com\/search\/specificmaterial.asp?bassnum=ma6061t6\">Fiches de propri\u00e9t\u00e9s des mat\u00e9riaux MatWeb et ASM<\/a><\/p><p>[2] <a href=\"https:\/\/www.engineeringtoolbox.com\/modulus-rigidity-d_946.html\">Comparaison des modules de cisaillement selon Engineering ToolBox<\/a><\/p><p>[3] <a href=\"https:\/\/www.makeitfrom.com\/material-properties\/6082-T6-Aluminum\">Donn\u00e9es de propri\u00e9t\u00e9s des mat\u00e9riaux MakeItFrom<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le module de cisaillement de l\u2019aluminium, \u00e9galement appel\u00e9 module de rigidit\u00e9 (G), mesure la r\u00e9sistance d\u2019un mat\u00e9riau \u00e0 la d\u00e9formation [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21284,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[64],"tags":[],"class_list":["post-21282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-material"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Module de cisaillement de l\u2019aluminium<\/title>\n<meta name=\"description\" content=\"L\u2019aluminium pr\u00e9sente un module de cisaillement d\u2019environ 26 GPa, soit 3,8\u00d710\u2076 psi. 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