{"id":107927,"date":"2024-03-19T14:53:33","date_gmt":"2024-03-19T13:53:33","guid":{"rendered":"https:\/\/step-lab.com\/?page_id=107927"},"modified":"2024-04-08T10:03:52","modified_gmt":"2024-04-08T08:03:52","slug":"essai-de-choc","status":"publish","type":"page","link":"https:\/\/step-lab.com\/fr\/essai-de-choc\/","title":{"rendered":"Essai de Choc"},"content":{"rendered":"<div id='av_section_1'  class='avia-section av-l06kgxki-22c0dc43e97780940cc66b4495c8bc94 main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  av-mini-hide avia-bg-style-scroll av-section-with-video-bg av-section-mobile-video-disabled container_wrap fullsize'   data-section-video-ratio='1920:1080'><div  class='avia-slideshow av_slideshow_obj-1-69e121e796d36 avia-slideshow-featured av_slideshow avia-slide-slider av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied  av-section-video-bg 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itemtype=\"https:\/\/schema.org\/VideoObject\" ><div class='av-click-overlay'><\/div><video class='avia_video'  autoplay playsinline loop preload=\"metadata\" muted  id='player_107927_265638_1160130535'><source src=\"https:\/\/step-lab.com\/wp-content\/uploads\/2024\/02\/impact-test.mp4\" type=\"video\/mp4\" \/><\/video><div class=\"av-click-to-play-overlay\"><div class=\"avia_playpause_icon\"><\/div><\/div><\/div><\/li><\/ul><\/div><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-l06kh5zz-a3acb22f91e2e9080eaec27c72b0e64c\">\n#top .hr.hr-invisible.av-l06kh5zz-a3acb22f91e2e9080eaec27c72b0e64c{\nheight:400px;\n}\n<\/style>\n<div  class='hr av-l06kh5zz-a3acb22f91e2e9080eaec27c72b0e64c hr-invisible  avia-builder-el-1  avia-builder-el-no-sibling '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><div id='av_section_2'  class='avia-section av-haa8pty-e8a3216d9705882e4264e90b73c28572 main_color avia-section-default avia-no-border-styling  avia-builder-el-2  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-gq5sgxy-519f8cb9464fbf2c5a7242f762a7cdef av_one_fifth  avia-builder-el-3  el_before_av_three_fifth  avia-builder-el-first  first flex_column_div  '     ><\/div><div  class='flex_column av-g5u0lba-1fc2305ea8002d6d8b058c87348d2ef6 av_three_fifth  avia-builder-el-4  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob2oyt-4bd829d176b5b0cd02daf09525ba56b9\">\n#top .av-special-heading.av-lnob2oyt-4bd829d176b5b0cd02daf09525ba56b9{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lnob2oyt-4bd829d176b5b0cd02daf09525ba56b9 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lnob2oyt-4bd829d176b5b0cd02daf09525ba56b9 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lnob2oyt-4bd829d176b5b0cd02daf09525ba56b9 av-special-heading-h1  avia-builder-el-5  el_before_av_textblock  avia-builder-el-first '><h1 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Quest-ce_quun_essai_de_choc\"><\/span>Qu\u2019est-ce qu\u2019un essai de choc ?<span class=\"ez-toc-section-end\"><\/span><\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob37mv-4b94ed9ec171b088e1ba9ed64c3ffb45\">\n#top .av_textblock_section.av-lnob37mv-4b94ed9ec171b088e1ba9ed64c3ffb45 .avia_textblock{\nfont-size:18px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnob37mv-4b94ed9ec171b088e1ba9ed64c3ffb45 .avia_textblock{\nfont-size:18px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnob37mv-4b94ed9ec171b088e1ba9ed64c3ffb45 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Un essai de choc est con\u00e7u pour <strong>reproduire les situations dans lesquelles un objet ou un mat\u00e9riau r\u00e9agit lorsqu&rsquo;il est soumis \u00e0 une force de choc qui provoque instantan\u00e9ment la d\u00e9formation, la fracture ou la rupture compl\u00e8te de l&rsquo;\u00e9chantillon.<\/strong> Ces essais \u00e9valuent la capacit\u00e9 du mat\u00e9riau \u00e0 absorber l&rsquo;\u00e9nergie lors d&rsquo;un choc et \u00e0 r\u00e9sister aux forces qui s&rsquo;exercent dans ces situations. Ils mesurent la r\u00e9silience et la r\u00e9sistance aux chocs, qui sont des propri\u00e9t\u00e9s essentielles pour garantir la s\u00e9curit\u00e9 et la fiabilit\u00e9 d&rsquo;un large \u00e9ventail de mat\u00e9riaux et de produits dans diff\u00e9rents secteurs.<\/p>\n<p>Cette page donne un aper\u00e7u d\u00e9taill\u00e9 de ce que sont les essais de choc, de la mani\u00e8re dont ils sont men\u00e9s et des machines d&rsquo;essai appropri\u00e9es.<\/p>\n<div id=\"malwarebytes-root\"><\/div>\n<div id=\"malwarebytes-root\"><\/div>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-luqnwhjj-69fb1eaa7452ed8aa011f999b2abd8f4\">\n#top .hr.hr-invisible.av-luqnwhjj-69fb1eaa7452ed8aa011f999b2abd8f4{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-luqnwhjj-69fb1eaa7452ed8aa011f999b2abd8f4 hr-invisible  avia-builder-el-7  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-e43pw6e-b20d3d896d65f27d96cb4ed27acc90c5 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">PAGE CONTENT<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #a81010;color:#a81010\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #a81010;color:#a81010\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/step-lab.com\/fr\/essai-de-choc\/#Quest-ce_quun_essai_de_choc\" >Qu\u2019est-ce qu\u2019un essai de choc ?<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/step-lab.com\/fr\/essai-de-choc\/#Quel_est_lobjectif_des_essais_de_chocs\" >Quel est l\u2019objectif des essais de chocs ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/step-lab.com\/fr\/essai-de-choc\/#Comment_se_deroulent_les_essais_de_choc\" >Comment se d\u00e9roulent les essais de choc ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/step-lab.com\/fr\/essai-de-choc\/#Essais_Charpy_et_Izod\" >Essais Charpy et Izod<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/step-lab.com\/fr\/essai-de-choc\/#Les_essais_de_choc_les_plus_courants\" >Les essais de choc les plus courants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/step-lab.com\/fr\/essai-de-choc\/#Machine_dessai_de_choc\" >Machine d\u2019essai de choc<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<\/div><\/section><\/p><\/div><div  class='flex_column av-fqhbwg6-6dfb2d3f6b43dda92a8ceabc8f14d0fe av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_11'  class='avia-section av-fi7ab0m-11f8f324410a9520aad1b1d5fec62141 main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-1ihbina-728aeddb5258a7a44370364053a85ec0 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-ekgd5za-168bd8928d9d7da74070aa544e37434c av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob3l94-11dfccc4c3c179591de738f15b77edcc\">\n#top .av-special-heading.av-lnob3l94-11dfccc4c3c179591de738f15b77edcc{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lnob3l94-11dfccc4c3c179591de738f15b77edcc .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lnob3l94-11dfccc4c3c179591de738f15b77edcc .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lnob3l94-11dfccc4c3c179591de738f15b77edcc av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Quel_est_lobjectif_des_essais_de_chocs\"><\/span>Quel est l\u2019objectif des essais de chocs ?<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob40yr-29a09d8117a7379b480aa5974782b439\">\n#top .av_textblock_section.av-lnob40yr-29a09d8117a7379b480aa5974782b439 .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnob40yr-29a09d8117a7379b480aa5974782b439 .avia_textblock{\nfont-size:18px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnob40yr-29a09d8117a7379b480aa5974782b439 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>L&rsquo;objectif principal des essais de choc est d&rsquo;<strong>\u00e9valuer le comportement d&rsquo;un objet ou d&rsquo;un mat\u00e9riau en pr\u00e9sence d&rsquo;un impact.<\/strong> Ceci est fondamental pour :<\/p>\n<ul>\n<li>D\u00e9terminer la capacit\u00e9 d&rsquo;un mat\u00e9riau \u00e0 absorber l&rsquo;\u00e9nergie et \u00e0 r\u00e9sister \u00e0 la d\u00e9formation en cas de collision.<\/li>\n<li>Identifier et comprendre les points critiques d&rsquo;un produit ou d&rsquo;une structure, afin d&rsquo;en am\u00e9liorer la conception.<\/li>\n<li>\u00c9valuer et garantir la s\u00e9curit\u00e9 des v\u00e9hicules, des \u00e9quipements de protection, des mat\u00e9riaux de construction, etc.<\/li>\n<\/ul>\n<div id=\"malwarebytes-root\"><\/div>\n<div id=\"malwarebytes-root\"><\/div>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-cy3rlfq-3d8ea6b2239ad01b4a1cded02675fb07 av_one_fifth flex_column_div  '     ><\/div>\n<\/p>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ckhapae-dd1a58f184291b9c2e5f3e0445e0d4b4\">\n.avia-section.av-ckhapae-dd1a58f184291b9c2e5f3e0445e0d4b4{\nbackground-color:#f7f7f7;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_12'  class='avia-section av-ckhapae-dd1a58f184291b9c2e5f3e0445e0d4b4 main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-c6hhp6u-78cfad7b286af60a5711cb501cc9cff7 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-buhufly-f6c8741bdb3157ca707dc5c30c01e0e2 av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob4d5n-89a72ab6d3331373c12aa667232b9277\">\n#top .av-special-heading.av-lnob4d5n-89a72ab6d3331373c12aa667232b9277{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lnob4d5n-89a72ab6d3331373c12aa667232b9277 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lnob4d5n-89a72ab6d3331373c12aa667232b9277 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lnob4d5n-89a72ab6d3331373c12aa667232b9277 av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Comment_se_deroulent_les_essais_de_choc\"><\/span>Comment se d\u00e9roulent les essais de choc ?<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob4o2u-6ef6587d817afa1b003486dd8fa697c6\">\n#top .av_textblock_section.av-lnob4o2u-6ef6587d817afa1b003486dd8fa697c6 .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnob4o2u-6ef6587d817afa1b003486dd8fa697c6 .avia_textblock{\nfont-size:18px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnob4o2u-6ef6587d817afa1b003486dd8fa697c6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Pour r\u00e9aliser un essai de choc, le sp\u00e9cimen est plac\u00e9 dans une structure de support sp\u00e9ciale dont la g\u00e9om\u00e9trie et l&rsquo;orientation sont d\u00e9termin\u00e9es par le type d&rsquo;essai utilis\u00e9, puis un poids connu, g\u00e9n\u00e9ralement mais pas toujours sous la forme d&rsquo;un pendule, est lib\u00e9r\u00e9 d&rsquo;une hauteur connue de mani\u00e8re \u00e0 entrer en collision avec le sp\u00e9cimen sous l&rsquo;effet d&rsquo;une force soudaine. Cette collision entre le poids et l&rsquo;\u00e9chantillon conduit g\u00e9n\u00e9ralement \u00e0 la destruction de l&rsquo;\u00e9chantillon, mais le transfert d&rsquo;\u00e9nergie entre les deux est utilis\u00e9 pour d\u00e9terminer la m\u00e9canique de rupture du mat\u00e9riau.<\/p>\n<p>Au cours de l&rsquo;essai, des param\u00e8tres cl\u00e9s sont mesur\u00e9s, notamment la force de l&rsquo;impact, la d\u00e9formation de l&rsquo;\u00e9chantillon et la quantit\u00e9 d&rsquo;\u00e9nergie absorb\u00e9e. Les donn\u00e9es recueillies sont ensuite utilis\u00e9es pour \u00e9valuer les performances du mat\u00e9riau ou du produit.<\/p>\n<div id=\"malwarebytes-root\"><\/div>\n<div id=\"malwarebytes-root\"><\/div>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-lnob5w8w-366eac47931f75038f87048d352d6884-wrap avia-button-left '><a href='https:\/\/step-lab.com\/fr\/tours-de-chute-pour-essais-de-chocs\/'  class='avia-button av-lnob5w8w-366eac47931f75038f87048d352d6884 av-link-btn avia-icon_select-no avia-size-small avia-position-left avia-color-theme-color'   aria-label=\"D\u00e9couvrez nos tours de chute\"><span class='avia_iconbox_title' >D\u00e9couvrez nos tours de chute<\/span><\/a><\/div><\/p><\/div><div  class='flex_column av-bbhp8di-3a9dab018e7e4514f3fbb09191d2d965 av_one_fifth flex_column_div  '     ><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-aq426o6-35aa67a04a41ba49e70c72ea14dbb320\">\n.avia-section.av-aq426o6-35aa67a04a41ba49e70c72ea14dbb320{\nbackground-color:ffffff;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_13'  class='avia-section av-aq426o6-35aa67a04a41ba49e70c72ea14dbb320 main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-a7f87xi-ef2195f0c47d641b0ced7795c4e9c5fa av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-9u2zzdy-32e5f5494dc1e9dceaba29f7a2da5cee av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob65fj-82a4f2ce5728b7a27ab727dc1a17aab5\">\n#top .av-special-heading.av-lnob65fj-82a4f2ce5728b7a27ab727dc1a17aab5{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lnob65fj-82a4f2ce5728b7a27ab727dc1a17aab5 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lnob65fj-82a4f2ce5728b7a27ab727dc1a17aab5 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lnob65fj-82a4f2ce5728b7a27ab727dc1a17aab5 av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Essais_Charpy_et_Izod\"><\/span>Essais Charpy et Izod<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob7rco-9d34b54940266e33b6d701ff4186630f\">\n#top .av_textblock_section.av-lnob7rco-9d34b54940266e33b6d701ff4186630f .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnob7rco-9d34b54940266e33b6d701ff4186630f .avia_textblock{\nfont-size:20px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnob7rco-9d34b54940266e33b6d701ff4186630f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Les essais de choc les plus courants sont l&rsquo;<strong>essai Charpy<\/strong> et l&rsquo;<strong>essai Izod<\/strong>. Ces deux essais d\u00e9terminent essentiellement les m\u00eames caract\u00e9ristiques des mat\u00e9riaux, mais diff\u00e8rent par l&rsquo;orientation de l&rsquo;\u00e9chantillon d&rsquo;essai, qui soumet l&rsquo;\u00e9chantillon \u00e0 des contraintes dans diff\u00e9rentes directions et implique qu&rsquo;un poids connu lib\u00e9r\u00e9 d&rsquo;une hauteur connue entre en collision avec l&rsquo;\u00e9chantillon dans sa structure d&rsquo;essai.<\/p>\n<ul>\n<li>L&rsquo;<strong>essai Charpy<\/strong> est un test largement utilis\u00e9 pour mesurer la r\u00e9silience des mat\u00e9riaux. Ce test consiste \u00e0 placer un \u00e9chantillon en forme de V sur un support et \u00e0 utiliser un marteau suspendu. Le marteau est lib\u00e9r\u00e9, frappe l&rsquo;\u00e9chantillon et la rupture de l&rsquo;\u00e9chantillon est mesur\u00e9e. La quantit\u00e9 d&rsquo;\u00e9nergie absorb\u00e9e lors de la rupture de l&rsquo;\u00e9chantillon est un indicateur cl\u00e9 de la r\u00e9silience du mat\u00e9riau.<\/li>\n<li>L&rsquo;<strong>essai Izod<\/strong>, quant \u00e0 lui, est similaire \u00e0 l&rsquo;essai Charpy, mais l&rsquo;\u00e9chantillon est positionn\u00e9 diff\u00e9remment. Dans cet essai, l&rsquo;\u00e9chantillon est fix\u00e9 horizontalement et le marteau frappe le c\u00f4t\u00e9 oppos\u00e9 de l&rsquo;\u00e9chantillon. Cet essai est utilis\u00e9 pour \u00e9valuer la r\u00e9sistance aux chocs des mat\u00e9riaux fragiles.<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-9cadkh2-32be288eaf59843558bce08d00a3cf41 av_one_fifth flex_column_div  '     ><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-36eqyu-28ba7e8ac73329c47f3840b2f138a44b\">\n.avia-section.av-36eqyu-28ba7e8ac73329c47f3840b2f138a44b{\nbackground-color:#f7f7f7;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_14'  class='avia-section av-36eqyu-28ba7e8ac73329c47f3840b2f138a44b main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-ubyd46-9bae52946e0ccace10b3054c165a6c62 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-85omszq-468480e3b17a26520bb1c90c7485fcda av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnob93ef-472619041629583221e54157b15812b9\">\n#top .av-special-heading.av-lnob93ef-472619041629583221e54157b15812b9{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lnob93ef-472619041629583221e54157b15812b9 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lnob93ef-472619041629583221e54157b15812b9 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lnob93ef-472619041629583221e54157b15812b9 av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Les_essais_de_choc_les_plus_courants\"><\/span>Les essais de choc les plus courants<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobba5r-8bd926b32dafc08bda9fed2c0199df9a\">\n#top .av_textblock_section.av-lnobba5r-8bd926b32dafc08bda9fed2c0199df9a .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnobba5r-8bd926b32dafc08bda9fed2c0199df9a .avia_textblock{\nfont-size:20px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnobba5r-8bd926b32dafc08bda9fed2c0199df9a '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><ul>\n<li>ASTM D1709 &#8211; R\u00e9sistance \u00e0 l&rsquo;impact des films plastiques par la m\u00e9thode de la fl\u00e8che en chute libre.<\/li>\n<li>ASTM D3763 &#8211; Propri\u00e9t\u00e9s de per\u00e7age \u00e0 grande vitesse des mat\u00e9riaux plastiques \u00e0 l&rsquo;aide de capteurs de charge et de d\u00e9placement.<\/li>\n<li>ASTM D5420 &#8211; R\u00e9sistance \u00e0 l&rsquo;impact d&rsquo;un \u00e9chantillon plat en plastique rigide par impact ponctuel avec un poids tombant (impact Gardner).<\/li>\n<li>ASTM E208 &#8211; Test d&rsquo;impact sur des barres entaill\u00e9es de mat\u00e9riaux m\u00e9talliques.<\/li>\n<li>ISO 13802 &#8211; Essais Charpy, Izod et de traction.<\/li>\n<li>ISO 148 &#8211; Essai d&rsquo;impact Charpy.<\/li>\n<li>ISO 179 &#8211; D\u00e9termination des propri\u00e9t\u00e9s d&rsquo;impact Charpy.<\/li>\n<li>ISO 6603 &#8211; D\u00e9termination du comportement \u00e0 l&rsquo;impact de la perforation des mat\u00e9riaux plastiques rigides.<\/li>\n<li>ISO 7765 &#8211; Ex\u00e9cution de l&rsquo;essai de chute de poids pour d\u00e9terminer la temp\u00e9rature de transition non ductile des aciers ferritiques (essai Pellini).<\/li>\n<li>ISO 10274 &#8211; Essai de d\u00e9chirure avec chute de poids.<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-7jadll2-541ce54d47d9717c1e2e2d17653f06bc av_one_fifth flex_column_div  '     ><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-pizxvq-17d3da264b288c64b3b7bae94f468c17\">\n.avia-section.av-pizxvq-17d3da264b288c64b3b7bae94f468c17{\nbackground-color:#ffffff;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_15'  class='avia-section av-pizxvq-17d3da264b288c64b3b7bae94f468c17 main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-107927'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-6ojvht2-877943a43a4f0bc96a4a9746113081ea av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-6dusbqe-294554445fa0d26e363193c9b3fb4c2d av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobc29z-51cd74f6fb883266d83564bfd3554f7a\">\n#top .av-special-heading.av-lnobc29z-51cd74f6fb883266d83564bfd3554f7a{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-lnobc29z-51cd74f6fb883266d83564bfd3554f7a .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lnobc29z-51cd74f6fb883266d83564bfd3554f7a .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lnobc29z-51cd74f6fb883266d83564bfd3554f7a av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Machine_dessai_de_choc\"><\/span>Machine d\u2019essai de choc<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobeiqc-3fe028ccb8fe7d5af47392fd84813f6b\">\n#top .av_textblock_section.av-lnobeiqc-3fe028ccb8fe7d5af47392fd84813f6b .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnobeiqc-3fe028ccb8fe7d5af47392fd84813f6b .avia_textblock{\nfont-size:20px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnobeiqc-3fe028ccb8fe7d5af47392fd84813f6b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Les essais de choc n\u00e9cessitent l&rsquo;utilisation de machines d&rsquo;essai de chocs sp\u00e9cialis\u00e9es. Ces machines sont con\u00e7ues pour g\u00e9n\u00e9rer des impacts contr\u00f4l\u00e9s sur des \u00e9chantillons et mesurer avec pr\u00e9cision le changement de propri\u00e9t\u00e9s du mat\u00e9riau ou du produit test\u00e9. Les machines d&rsquo;essai de choc sont essentielles pour garantir que les essais sont pr\u00e9cis, reproductibles et conformes aux normes.<\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-5yci5s6-578ff5e9d3d293a67111dc751e8e80be av_one_fifth flex_column_div  '     ><\/div><div  class='flex_column av-57vfgli-b5a8df0ea6c0734f175cbd4a9a43e633 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-4sq8tye-43b559616e06db62af6450d220a3bc1c av_one_fifth flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobfhlq-43d68b40d3e0bc55018eb537f8f5a697\">\n.avia-image-container.av-lnobfhlq-43d68b40d3e0bc55018eb537f8f5a697 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-lnobfhlq-43d68b40d3e0bc55018eb537f8f5a697 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-lnobfhlq-43d68b40d3e0bc55018eb537f8f5a697 av-styling- avia-align-center'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-71111 avia-img-lazy-loading-not-71111 avia_image ' src=\"https:\/\/step-lab.com\/wp-content\/uploads\/Drop-Tower.png\" alt='' title='Drop Tower'  height=\"585\" width=\"400\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/step-lab.com\/wp-content\/uploads\/Drop-Tower.png 400w, https:\/\/step-lab.com\/wp-content\/uploads\/Drop-Tower-205x300.png 205w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/div><\/div><\/div><\/div><div  class='flex_column av-4b3a1ae-f21f30f49cd258d5a10d75324e41258b av_two_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobyybi-5d1c6c78007a1f62397c8f527a9eaaae\">\n#top .hr.hr-invisible.av-lnobyybi-5d1c6c78007a1f62397c8f527a9eaaae{\nheight:40px;\n}\n<\/style>\n<div  class='hr av-lnobyybi-5d1c6c78007a1f62397c8f527a9eaaae hr-invisible'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobv4dt-7fb3a3ffb5eb228afb6ba0f2383363bb\">\n#top .av_textblock_section.av-lnobv4dt-7fb3a3ffb5eb228afb6ba0f2383363bb .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-lnobv4dt-7fb3a3ffb5eb228afb6ba0f2383363bb .avia_textblock{\nfont-size:20px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-lnobv4dt-7fb3a3ffb5eb228afb6ba0f2383363bb '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h5>S\u00c9RIE DW &#8211; TOURS DE CHUTE<\/h5>\n<p>Les machines d&rsquo;essai \u00e0 grande vitesse HTM peuvent \u00eatre largement utilis\u00e9es pour les essais sur les mati\u00e8res plastiques. Ils se caract\u00e9risent par une vitesse d&rsquo;essai \u00e9lev\u00e9e et des plages de force \u00e9tendues et peuvent \u00eatre utilis\u00e9s de mani\u00e8re flexible dans les essais de traction et de compression. En outre, ils peuvent \u00eatre \u00e9quip\u00e9s d&rsquo;une chambre climatique pour effectuer des tests \u00e0 diff\u00e9rentes temp\u00e9ratures.<\/p>\n<\/div><\/section><br \/>\n<div  class='togglecontainer av-lnobtaey-5e8926671f1e1d02012a8a5c56d941c5 toggle_close_all' >\n<section class='av_toggle_section av-lnobt6v9-e9bf58c18e0c02b294d80a231deb3b14'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{Tout} \"  ><p id='toggle-toggle-id-2' data-fake-id='#toggle-id-2' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-2' data-slide-speed=\"200\" data-title=\"Caract\u00e9ristiques\" data-title-open=\"\" data-aria_collapsed=\"Cliquez pour \u00e9tendre : Caract\u00e9ristiques\" data-aria_expanded=\"Cliquez pour r\u00e9duire : Caract\u00e9ristiques\">Caract\u00e9ristiques<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-2' aria-labelledby='toggle-toggle-id-2' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><ul>\n<li>Large gamme d&rsquo;accessoires<\/li>\n<li>\u00c9nergie d&rsquo;impact 0,2 \u00e0 2000J<\/li>\n<li>Lecture continue du taux de chute<\/li>\n<li>Facilit\u00e9 d&rsquo;utilisation gr\u00e2ce \u00e0 une interface utilisateur intuitive<\/li>\n<li>S\u00e9curit\u00e9 \u00e9lev\u00e9e, gr\u00e2ce \u00e0 des verrous de porte qui s&rsquo;activent lorsque la machine est r\u00e9initialis\u00e9e<\/li>\n<li>Syst\u00e8me de largage pneumatique du poids de chute<\/li>\n<li>Levage et positionnement automatis\u00e9s des poids<\/li>\n<li>Hauteur de chute variable<\/li>\n<li>Vitesse de choc jusqu&rsquo;\u00e0 5,0 m\/s (jusqu&rsquo;\u00e0 20 m\/s avec le syst\u00e8me de pr\u00e9contrainte par ressort)<\/li>\n<li>Jeu de poids de chute standard : poids de 0,5 \u00e0 10 kg, soit un total de 70 kg<\/li>\n<li>Acquisition de la vitesse de choc \u00e0 200 kHz<\/li>\n<li>Taux d&rsquo;acquisition des signaux de force jusqu&rsquo;\u00e0 10 MHz<\/li>\n<li>Passage rapide de l&rsquo;\u00e9quipement d&rsquo;essai ISO \u00e0 l&rsquo;\u00e9quipement d&rsquo;essai ASTM et vice versa<\/li>\n<li>Grande vari\u00e9t\u00e9 de pinces et d&rsquo;accessoires de test d\u00e9di\u00e9s<\/li>\n<li>Int\u00e9gration de capteurs \u00e0 jauges de contrainte et de capteurs pi\u00e9zo\u00e9lectriques<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/section>\n<\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lnobunfg-b660f7053693c796cea2c2b134dcaace\">\n#top .hr.hr-invisible.av-lnobunfg-b660f7053693c796cea2c2b134dcaace{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-lnobunfg-b660f7053693c796cea2c2b134dcaace hr-invisible'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<div  class='avia-button-wrap 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class='avia_iconbox_title' >Brochure<\/span><\/a>\n<\/div><\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Les syst\u00e8mes de choc STEP Lab utilisent les technologies les plus innovantes pour vous fournir des r\u00e9sultats pr\u00e9cis sur le comportement des mat\u00e9riaux et des produits.<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-107927","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Essai de Choc - STEP Lab<\/title>\n<meta name=\"description\" content=\"Qu&#039;est-ce qu&#039;un essai de choc, quel est son objectif et comment il se d\u00e9roule. 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