{"id":7090,"date":"2025-07-30T10:28:55","date_gmt":"2025-07-30T02:28:55","guid":{"rendered":"https:\/\/www.packqc.com\/?p=7090"},"modified":"2025-09-12T08:34:04","modified_gmt":"2025-09-12T00:34:04","slug":"bending-stiffness-test","status":"publish","type":"post","link":"https:\/\/www.packqc.com\/fr\/bending-stiffness-test\/","title":{"rendered":"Guide ISO 5628 et machine d'essai de rigidit\u00e9 \u00e0 la flexion : aper\u00e7u"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"7090\" class=\"elementor elementor-7090\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea52c1c e-flex e-con-boxed e-con e-parent\" data-id=\"ea52c1c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4b7ffbd elementor-widget elementor-widget-heading\" data-id=\"4b7ffbd\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Guide ISO 5628 et machine d'essai de rigidit\u00e9 \u00e0 la flexion : aper\u00e7u<\/h1>\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<div class=\"elementor-element elementor-element-f374322 e-flex e-con-boxed e-con e-parent\" data-id=\"f374322\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43d0885 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"43d0885\" data-element_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 data-start=\"522\" data-end=\"990\">Le <strong data-start=\"526\" data-end=\"552\">essai de rigidit\u00e9 en flexion<\/strong> est une m\u00e9thode d'\u00e9valuation critique des propri\u00e9t\u00e9s des mat\u00e9riaux utilis\u00e9e dans des secteurs tels que l'emballage, les dispositifs m\u00e9dicaux, les produits pharmaceutiques, les textiles et la production de carton. Ce test mesure la r\u00e9sistance d'un mat\u00e9riau \u00e0 la flexion et fournit des informations sur sa rigidit\u00e9, sa flexibilit\u00e9 et ses performances structurelles. <a href=\"https:\/\/www.iso.org\/standard\/76347.html\" target=\"_blank\" rel=\"noopener nofollow\"><strong data-start=\"854\" data-end=\"871\">ISO 5628:2019<\/strong><\/a> d\u00e9crit les principes normalis\u00e9s pour l'ex\u00e9cution de ces essais en utilisant des m\u00e9thodes de flexion \u00e0 deux, trois ou quatre points.<\/p><p data-start=\"992\" data-end=\"1437\">Pour garantir des r\u00e9sultats pr\u00e9cis, les fabricants et les professionnels du contr\u00f4le de la qualit\u00e9 doivent suivre les proc\u00e9dures correctes, utiliser un \u00e9quipement conforme et comprendre comment les variables telles que l'\u00e9paisseur du mat\u00e9riau, le module d'\u00e9lasticit\u00e9 et les conditions de support affectent les r\u00e9sultats. Cet article vous guide dans l'ex\u00e9cution correcte de l'essai de rigidit\u00e9 en flexion tout en recommandant des instruments fiables tels que le <strong data-start=\"1384\" data-end=\"1436\">Cell Instruments WTD-01 Testeur de rigidit\u00e9 \u00e0 la flexion<\/strong>.<\/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-ced6aee elementor-widget elementor-widget-image\" data-id=\"ced6aee\" data-element_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\t<a href=\"https:\/\/www.packqc.com\/fr\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/WTD-01-Bending-Stiffness-Tester_\u526f\u672c_\u526f\u672c.webp\" class=\"attachment-large size-large wp-image-7124\" alt=\"\" srcset=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/WTD-01-Bending-Stiffness-Tester_\u526f\u672c_\u526f\u672c.webp 600w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/WTD-01-Bending-Stiffness-Tester_\u526f\u672c_\u526f\u672c-300x300.webp 300w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/WTD-01-Bending-Stiffness-Tester_\u526f\u672c_\u526f\u672c-100x100.webp 100w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/WTD-01-Bending-Stiffness-Tester_\u526f\u672c_\u526f\u672c-150x150.webp 150w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/WTD-01-Bending-Stiffness-Tester_\u526f\u672c_\u526f\u672c-12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\">\t\t\t\t\t\t\t\t<\/a>\n\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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fcea402 e-flex e-con-boxed e-con e-parent\" data-id=\"fcea402\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-78240c3 elementor-widget elementor-widget-heading\" data-id=\"78240c3\" data-element_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\">Aper\u00e7u de la m\u00e9thode d'essai de rigidit\u00e9 bas\u00e9e sur la norme ISO 5628<\/h2>\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<div class=\"elementor-element elementor-element-acd9c29 e-flex e-con-boxed e-con e-parent\" data-id=\"acd9c29\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6e7200a elementor-widget elementor-widget-text-editor\" data-id=\"6e7200a\" data-element_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 data-start=\"1497\" data-end=\"1655\">Le <strong data-start=\"1501\" data-end=\"1526\">m\u00e9thode d'essai de rigidit\u00e9<\/strong> d\u00e9crite dans la norme ISO 5628 est fond\u00e9e sur la th\u00e9orie des poutres, o\u00f9 les <strong data-start=\"1587\" data-end=\"1613\">rigidit\u00e9 en flexion (Sb)<\/strong> d'un \u00e9chantillon homog\u00e8ne est d\u00e9termin\u00e9e par :<\/p><p style=\"text-align: center;\" data-start=\"1497\" data-end=\"1655\"><strong style=\"font-size: 16px;\" data-start=\"1659\" data-end=\"1679\">Sb = (E \u00d7 I) \/ b<\/strong><\/p><p data-start=\"1681\" data-end=\"1689\">O\u00f9 ?<\/p><ul><li data-start=\"1692\" data-end=\"1736\"><em data-start=\"1692\" data-end=\"1695\">E<\/em> est le module d'\u00e9lasticit\u00e9 du mat\u00e9riau<\/li><li data-start=\"1739\" data-end=\"1776\"><em data-start=\"1739\" data-end=\"1742\">I<\/em> est le deuxi\u00e8me moment d'inertie<\/li><li data-start=\"1779\" data-end=\"1813\"><em data-start=\"1779\" data-end=\"1782\">b<\/em> est la largeur de l'\u00e9chantillon<\/li><\/ul><p data-start=\"1815\" data-end=\"1896\">Selon la norme ISO 5628:2019, la rigidit\u00e9 peut \u00eatre calcul\u00e9e selon trois approches :<\/p><ol><li data-start=\"1900\" data-end=\"1991\">Mesure de la pente maximale de la <strong data-start=\"1935\" data-end=\"1959\">force en fonction de la d\u00e9viation<\/strong> ou <strong data-start=\"1963\" data-end=\"1982\">force en fonction de l'angle<\/strong> courbe.<\/li><li data-start=\"1995\" data-end=\"2092\">Application d'une d\u00e9viation\/angle fixe et mesure de la force correspondante apr\u00e8s un temps sp\u00e9cifi\u00e9.<\/li><li data-start=\"2096\" data-end=\"2181\">Application d'une force constante et enregistrement de la d\u00e9viation ou de l'angle apr\u00e8s une p\u00e9riode d\u00e9termin\u00e9e.<\/li><\/ol><p data-start=\"2183\" data-end=\"2309\">Chaque m\u00e9thode doit \u00eatre ex\u00e9cut\u00e9e dans des conditions bien d\u00e9finies, avec <strong data-start=\"2248\" data-end=\"2264\">taux d'essai<\/strong> et <strong data-start=\"2269\" data-end=\"2291\">temps de mesure<\/strong> rapport\u00e9 clairement.<\/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<div class=\"elementor-element elementor-element-3a9974f e-flex e-con-boxed e-con e-parent\" data-id=\"3a9974f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-345f0ba elementor-widget elementor-widget-heading\" data-id=\"345f0ba\" data-element_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\">S\u00e9lection de l'\u00e9quipement : Utilisation d'une machine d'essai de rigidit\u00e9<\/h2>\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<div class=\"elementor-element elementor-element-079a5bd e-flex e-con-boxed e-con e-parent\" data-id=\"079a5bd\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9afc859 elementor-widget elementor-widget-text-editor\" data-id=\"9afc859\" data-element_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 data-start=\"2376\" data-end=\"2522\">Le choix d'une solution adapt\u00e9e <strong data-start=\"2396\" data-end=\"2425\">machine d'essai de rigidit\u00e9<\/strong> est essentiel pour obtenir des r\u00e9sultats pr\u00e9cis et respecter les normes ISO. Les principales sp\u00e9cifications sont les suivantes :<\/p><ul><li data-start=\"2526\" data-end=\"2572\">Longueur de pliage r\u00e9glable avec une pr\u00e9cision de \u00b11%<\/li><li data-start=\"2575\" data-end=\"2661\">Capacit\u00e9 d'enregistrement <strong data-start=\"2593\" data-end=\"2620\">force en fonction de la d\u00e9flexion<\/strong> ou <strong data-start=\"2624\" data-end=\"2659\">force en fonction de la d\u00e9viation angulaire<\/strong><\/li><li data-start=\"2664\" data-end=\"2720\">Sensibilit\u00e9 \u00e0 \u00b12,5% de la plage de mesure compl\u00e8te<\/li><li data-start=\"2723\" data-end=\"2781\">Des enclumes de soutien stables qui minimisent les artefacts de test<\/li><\/ul><p data-start=\"2783\" data-end=\"3100\">Le <strong data-start=\"2787\" data-end=\"2839\">Cell Instruments WTD-01 Testeur de rigidit\u00e9 \u00e0 la flexion<\/strong> r\u00e9pond parfaitement \u00e0 ces exigences. Il permet une collecte automatis\u00e9e et pr\u00e9cise des donn\u00e9es et une analyse des courbes dans toutes les configurations d'essai approuv\u00e9es par l'ISO 5628. Il s'agit d'une solution robuste pour les laboratoires qui souhaitent garantir la performance de leurs produits gr\u00e2ce \u00e0 des donn\u00e9es de rigidit\u00e9 fiables.<\/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<div class=\"elementor-element elementor-element-4726e31 e-flex e-con-boxed e-con e-parent\" data-id=\"4726e31\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fe9c91f elementor-widget elementor-widget-heading\" data-id=\"fe9c91f\" data-element_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\">Pr\u00e9paration des \u00e9chantillons et conditions d'essai<\/h2>\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<div class=\"elementor-element elementor-element-f644a76 e-grid e-con-boxed e-con e-parent\" data-id=\"f644a76\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a51a5f4 e-con-full e-flex e-con e-child\" data-id=\"a51a5f4\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b1aabd elementor-widget elementor-widget-heading\" data-id=\"3b1aabd\" data-element_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\">\u00c9chantillonnage 1<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a59d5b elementor-widget elementor-widget-text-editor\" data-id=\"8a59d5b\" data-element_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 l'analyse par lots, s\u00e9lectionner les \u00e9chantillons en fonction des crit\u00e8res suivants <strong data-start=\"3218\" data-end=\"3229\">ISO 186<\/strong>. S'assurer que les \u00e9prouvettes sont repr\u00e9sentatives du lot pour garantir la validit\u00e9 des conclusions.<\/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-b9bf964 elementor-widget elementor-widget-image\" data-id=\"b9bf964\" data-element_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\t<a href=\"https:\/\/www.packqc.com\/fr\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-1024x768.webp\" class=\"attachment-large size-large wp-image-7129\" alt=\"\" srcset=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-1024x768.webp 1024w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-scaled-600x450.webp 600w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-300x225.webp 300w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-768x576.webp 768w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-1536x1152.webp 1536w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-2048x1536.webp 2048w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161326_147_\u526f\u672c_\u526f\u672c-16x12.webp 16w\" sizes=\"(max-width: 1024px) 100vw, 1024px\">\t\t\t\t\t\t\t\t<\/a>\n\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>\n\t\t<div class=\"elementor-element elementor-element-6140a88 e-con-full e-flex e-con e-child\" data-id=\"6140a88\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b0daa4a elementor-widget elementor-widget-heading\" data-id=\"b0daa4a\" data-element_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\">Conditionnement 2<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c96ff83 elementor-widget elementor-widget-text-editor\" data-id=\"c96ff83\" data-element_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>Conditionner les \u00e9chantillons conform\u00e9ment \u00e0 <strong data-start=\"3356\" data-end=\"3367\">ISO 187<\/strong> \u00e0 une temp\u00e9rature et une humidit\u00e9 normales. Conserver les \u00e9chantillons dans cet environnement pendant toute la dur\u00e9e du processus d'essai.<\/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-a65eaa1 elementor-widget elementor-widget-image\" data-id=\"a65eaa1\" data-element_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\t<a href=\"https:\/\/www.packqc.com\/fr\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-1024x768.webp\" class=\"attachment-large size-large wp-image-7130\" alt=\"M\u00e9thode d&#039;essai de rigidit\u00e9 \u00e0 la flexion\" srcset=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-1024x768.webp 1024w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-scaled-600x450.webp 600w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-300x225.webp 300w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-768x576.webp 768w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-1536x1152.webp 1536w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-2048x1536.webp 2048w, https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/DJI_20230420_161423_151_\u526f\u672c_\u526f\u672c-16x12.webp 16w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\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>\n\t\t<div class=\"elementor-element elementor-element-0689448 e-con-full e-flex e-con e-child\" data-id=\"0689448\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-01f90f1 elementor-widget elementor-widget-heading\" data-id=\"01f90f1\" data-element_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\">Pr\u00e9paration de l'\u00e9chantillon 3<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b615f36 elementor-widget elementor-widget-text-editor\" data-id=\"b615f36\" data-element_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<ul><li data-start=\"3510\" data-end=\"3549\">D\u00e9couper des \u00e9prouvettes dans des feuilles intactes<\/li><li data-start=\"3552\" data-end=\"3590\">\u00c9viter les filigranes, les rides et les plis<\/li><li data-start=\"3593\" data-end=\"3636\">Veiller \u00e0 ce que les bords longs soient parall\u00e8les \u00e0 \u00b11%<\/li><li data-start=\"3639\" data-end=\"3731\">Pr\u00e9parer un minimum de 10 \u00e9chantillons pour chaque direction (direction de la machine et direction transversale).<\/li><\/ul><p data-start=\"3733\" data-end=\"3925\">La d\u00e9finition de la <strong data-start=\"3755\" data-end=\"3771\">\"c\u00f4t\u00e9 sup\u00e9rieur\"<\/strong> de la pi\u00e8ce d'essai est critique, car la flexion doit \u00eatre effectu\u00e9e dans les deux directions (vers le haut et vers le bas), et les r\u00e9sultats doivent \u00eatre moyenn\u00e9s afin d'\u00e9liminer le biais de courbure.<\/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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-670b26d e-flex e-con-boxed e-con e-parent\" data-id=\"670b26d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5bfcca0 elementor-widget elementor-widget-heading\" data-id=\"5bfcca0\" data-element_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\">Proc\u00e9dure de test<\/h2>\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<div class=\"elementor-element elementor-element-f5559f9 e-flex e-con-boxed e-con e-parent\" data-id=\"f5559f9\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d879eda elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"d879eda\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/yuaDfFkcMtA?si=LEu3ImiQ_PhYgt6C&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;play_on_mobile&quot;:&quot;yes&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;loop&quot;:&quot;yes&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2cb4a1c elementor-widget elementor-widget-text-editor\" data-id=\"2cb4a1c\" data-element_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 data-start=\"3954\" data-end=\"4205\">Avant de proc\u00e9der \u00e0 la <strong data-start=\"3976\" data-end=\"4002\">essai de rigidit\u00e9 en flexion<\/strong>d\u00e9terminer l'\u00e9paisseur \u00e0 l'aide de <strong data-start=\"4030\" data-end=\"4041\">ISO 534<\/strong> (pour le papier et le carton) ou <strong data-start=\"4067\" data-end=\"4079\">ISO 3034<\/strong> (pour le carton ondul\u00e9). Notez que l'\u00e9paisseur en vrac et l'\u00e9paisseur de la feuille donnent des r\u00e9sultats diff\u00e9rents et doivent \u00eatre trait\u00e9es en cons\u00e9quence.<\/p><ul><li data-start=\"4209\" data-end=\"4251\">Placer l'\u00e9chantillon sur le testeur de rigidit\u00e9<\/li><li data-start=\"4254\" data-end=\"4337\">Effectuer cinq tests en se penchant vers le c\u00f4t\u00e9 sup\u00e9rieur et cinq tests en se penchant vers le c\u00f4t\u00e9 inf\u00e9rieur.<\/li><li data-start=\"4340\" data-end=\"4386\">Tracer la force en fonction de la d\u00e9viation ou la force en fonction de l'angle<\/li><li data-start=\"4389\" data-end=\"4451\">Utiliser la partie lin\u00e9aire de la courbe pour l'\u00e9valuation de la rigidit\u00e9<\/li><li data-start=\"4454\" data-end=\"4525\">Faire la moyenne de tous les r\u00e9sultats des tests et r\u00e9diger un rapport \u00e0 l'aide de <strong data-start=\"4496\" data-end=\"4525\">trois chiffres significatifs<\/strong><\/li><\/ul><p data-start=\"4527\" data-end=\"4626\">Important : veillez \u00e0 ce que chaque sp\u00e9cimen soit conforme \u00e0 l'original. <strong data-start=\"4570\" data-end=\"4590\">aussi plat que possible<\/strong> pour \u00e9viter les erreurs dues \u00e0 la pr\u00e9courbure.<\/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<div class=\"elementor-element elementor-element-1f8f3e3 e-flex e-con-boxed e-con e-parent\" data-id=\"1f8f3e3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aa9bcee elementor-widget elementor-widget-heading\" data-id=\"aa9bcee\" data-element_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\">\u00c9valuation et calcul<\/h2>\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<div class=\"elementor-element elementor-element-6f10460 e-flex e-con-boxed e-con e-parent\" data-id=\"6f10460\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eee373f elementor-widget elementor-widget-text-editor\" data-id=\"eee373f\" data-element_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 data-start=\"4664\" data-end=\"4702\">Les r\u00e9sultats peuvent \u00eatre calcul\u00e9s soit par :<\/p><ul><li data-start=\"4705\" data-end=\"4770\">En utilisant le <strong data-start=\"4715\" data-end=\"4732\">r\u00e9gion lin\u00e9aire<\/strong> de la courbe force-d\u00e9formation-angle<\/li><li data-start=\"4773\" data-end=\"4847\">Application de la <strong data-start=\"4786\" data-end=\"4821\">D\u00e9flexion ou angle recommand\u00e9<\/strong> et en mesurant la force<\/li><li data-start=\"4850\" data-end=\"4916\">Enregistrement de la <strong data-start=\"4864\" data-end=\"4881\">force maximale<\/strong> et la d\u00e9flexion correspondante<\/li><\/ul><p data-start=\"4918\" data-end=\"5082\">Choisissez la m\u00e9thode d'\u00e9valuation en fonction de la configuration de votre test (deux points, trois points ou quatre points) et veillez \u00e0 ce que la moyenne des donn\u00e9es soit calcul\u00e9e pour tous les \u00e9chantillons valides.<\/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<div class=\"elementor-element elementor-element-b2d1a28 e-flex e-con-boxed e-con e-parent\" data-id=\"b2d1a28\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-55d8922 elementor-widget elementor-widget-heading\" data-id=\"55d8922\" data-element_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\">Pourquoi choisir le test de rigidit\u00e9 en flexion Cell Instruments ?<\/h2>\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<div class=\"elementor-element elementor-element-2f8cfb1 e-flex e-con-boxed e-con e-parent\" data-id=\"2f8cfb1\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4de75da elementor-widget elementor-widget-text-editor\" data-id=\"4de75da\" data-element_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 data-start=\"5158\" data-end=\"5291\">Pour les fabricants et les laboratoires de contr\u00f4le qualit\u00e9 \u00e0 la recherche d'efficacit\u00e9 et de conformit\u00e9 ISO, le <strong data-start=\"5231\" data-end=\"5283\"><a href=\"https:\/\/www.packqc.com\/fr\/\">Instruments cellulaires<\/a> WTD-01 Testeur de rigidit\u00e9 \u00e0 la flexion<\/strong> offres :<\/p><ul><li data-start=\"5295\" data-end=\"5345\">Compatibilit\u00e9 totale avec les proc\u00e9dures d'essai ISO 5628<\/li><li data-start=\"5348\" data-end=\"5392\">Des donn\u00e9es de haute pr\u00e9cision et coh\u00e9rentes<\/li><li data-start=\"5395\" data-end=\"5427\">Capacit\u00e9 d'essais multipoints<\/li><li data-start=\"5430\" data-end=\"5480\">Interface conviviale pour une utilisation simplifi\u00e9e<\/li><li data-start=\"5483\" data-end=\"5585\">Convient \u00e0 une large gamme de mat\u00e9riaux, y compris le carton, les emballages souples et les lamin\u00e9s m\u00e9dicaux.<\/li><\/ul><p data-start=\"5587\" data-end=\"5778\">Cet instrument est id\u00e9al pour les fabricants d'emballages, les d\u00e9veloppeurs de dispositifs m\u00e9dicaux et les laboratoires d'essais de mat\u00e9riaux qui ont besoin de <strong data-start=\"5703\" data-end=\"5738\">essai fiable de rigidit\u00e9 \u00e0 la flexion<\/strong> dans des conditions r\u00e9glement\u00e9es par l'ISO.<\/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<div class=\"elementor-element elementor-element-12ec6bd e-flex e-con-boxed e-con e-parent\" data-id=\"12ec6bd\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ca831cb elementor-widget elementor-widget-heading\" data-id=\"ca831cb\" data-element_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\">Conclusion<\/h2>\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<div class=\"elementor-element elementor-element-eeae7d4 e-flex e-con-boxed e-con e-parent\" data-id=\"eeae7d4\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15ae6ce elementor-widget elementor-widget-text-editor\" data-id=\"15ae6ce\" data-element_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 data-start=\"5800\" data-end=\"6176\">Ex\u00e9cution d&#039;un <strong data-start=\"5812\" data-end=\"5838\">essai de rigidit\u00e9 en flexion<\/strong> en conformit\u00e9 avec <strong data-start=\"5858\" data-end=\"5875\">ISO 5628:2019<\/strong> ne se limite pas \u00e0 la mesure de la force et de la d\u00e9viation, mais exige une pr\u00e9paration r\u00e9fl\u00e9chie de l'\u00e9chantillon, des instruments pr\u00e9cis et des calculs minutieux. Le choix d'un <strong data-start=\"6044\" data-end=\"6073\">machine d'essai de rigidit\u00e9<\/strong>, comme le <strong data-start=\"6084\" data-end=\"6111\">Cell Instruments WTD-01<\/strong>Cette m\u00e9thode garantit des r\u00e9sultats fiables et permet un contr\u00f4le rigoureux de la qualit\u00e9.<\/p><p data-start=\"6178\" data-end=\"6381\">En adh\u00e9rant aux m\u00e9thodes et principes d\u00e9crits ici, les professionnels de l'emballage, du m\u00e9dical, du pharmaceutique et des secteurs connexes peuvent \u00e9valuer en toute confiance les performances des mat\u00e9riaux et respecter les normes applicables aux produits.<\/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-24c320b elementor-align-center elementor-widget elementor-widget-button\" data-id=\"24c320b\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"mailto:packqc@celtec.cn\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-check-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm0 48c110.532 0 200 89.451 200 200 0 110.532-89.451 200-200 200-110.532 0-200-89.451-200-200 0-110.532 89.451-200 200-200m140.204 130.267l-22.536-22.718c-4.667-4.705-12.265-4.736-16.97-.068L215.346 303.697l-59.792-60.277c-4.667-4.705-12.265-4.736-16.97-.069l-22.719 22.536c-4.705 4.667-4.736 12.265-.068 16.971l90.781 91.516c4.667 4.705 12.265 4.736 16.97.068l172.589-171.204c4.704-4.668 4.734-12.266.067-16.971z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contactez-nous<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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>","protected":false},"excerpt":{"rendered":"<p>ISO 5628 Guide with Bending Stiffness Testing Machine Insights The bending stiffness test is a critical material property evaluation method used across industries including packaging, medical devices, pharmaceuticals, textiles, and paperboard production. This test measures a material\u2019s resistance to bending and provides insights into its rigidity, flexibility, and structural performance. ISO 5628:2019 outlines standardized principles [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"set","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-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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7090","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/posts\/7090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/comments?post=7090"}],"version-history":[{"count":0,"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/posts\/7090\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/media?parent=7090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/categories?post=7090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.packqc.com\/fr\/wp-json\/wp\/v2\/tags?post=7090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}