{"id":3730,"date":"2018-06-29T23:39:36","date_gmt":"2018-06-29T15:39:36","guid":{"rendered":"http:\/\/www.bundytubes.com\/?p=3730"},"modified":"2018-06-29T23:47:25","modified_gmt":"2018-06-29T15:47:25","slug":"bundy-tube-burst-pressure-calculation-adopting-faupel-formula","status":"publish","type":"post","link":"https:\/\/www.bundytubes.com\/fr\/bundy-tube-burst-pressure-calculation-adopting-faupel-formula\/","title":{"rendered":"Calcul de la pression \u00e0 la rupture du tube Bundy selon la formule de Faupel"},"content":{"rendered":"<p>Cet article pr\u00e9sente le calcul th\u00e9orique de la pression d\u2019\u00e9clatement des tubes Bundy, fond\u00e9 sur la formule de Faupel (calcul de la pression d\u2019\u00e9clatement pour un r\u00e9cipient cylindrique) ; les propri\u00e9t\u00e9s des mat\u00e9riaux doivent \u00eatre choisies conform\u00e9ment aux normes mat\u00e9rielles respectives.<\/p>\n<p>Cette m\u00e9thode peut \u00e9galement s\u2019appliquer \u00e0 la plupart des calculs de pression d\u2019\u00e9clatement pour tubes ou tuyaux m\u00e9talliques.<\/p>\n<h3>Param\u00e8tres d\u2019entr\u00e9e<\/h3>\n<p>D<sub>0<\/sub>, diam\u00e8tre ext\u00e9rieur du tube\/tuyau, en mm.<\/p>\n<p>t, \u00e9paisseur du tube\/tuyau, en mm.<\/p>\n<p>\u03c3<sub>s<\/sub>, limite conventionnelle d\u2019\u00e9lasticit\u00e9 du tube\/tuyau, en MPa.<\/p>\n<p>\u03c3<sub>b<\/sub>, r\u00e9sistance \u00e0 la traction du tube\/tuyau, en MPa.<\/p>\n<h3>Calcul<\/h3>\n<p>1. Rapport entre le diam\u00e8tre ext\u00e9rieur et le diam\u00e8tre int\u00e9rieur du tube\/tuyau<\/p>\n<p style=\"padding-left: 30px;\">K=D<sub>0<\/sub>\/(D<sub>0<\/sub>-2t)<\/p>\n<p>2. Pression d\u2019\u00e9clatement du tube\/tuyau, en MPa<\/p>\n<p style=\"padding-left: 30px;\">P<sub>b<\/sub> = (2\/\u221a<span style=\"text-decoration: overline;\">3<\/span>)*\u03c3<sub>s*<\/sub>(2-\u03c3<sub>s<\/sub>\/\u03c3<sub>b<\/sub>)*lnK<\/p>\n<h3>M\u00e9thode facultative<\/h3>\n<p>Pour les tubes\/pipe \u00e0 paroi mince dont le rapport K est inf\u00e9rieur \u00e0 1,1, la pression \u00e0 la rupture peut \u00e9galement \u00eatre calcul\u00e9e \u00e0 l\u2019aide d\u2019une formule simplifi\u00e9e utilisant le diam\u00e8tre moyen D.<\/p>\n<p style=\"padding-left: 30px;\">D = D<sub>0<\/sub>-t\/2<br \/>\nP<sub>b<\/sub> = 2\u03c3<sub>b<\/sub>t\/D<\/p>\n<script type=\"text\/javascript\" charset=\"utf-8\" src=\"http:\/\/w.sharethis.com\/widget\/?wp=7.1.2\"><\/script>","protected":false},"excerpt":{"rendered":"<p>Cet article pr\u00e9sente le calcul th\u00e9orique de la pression d\u2019\u00e9clatement des tubes Bundy, fond\u00e9 sur la formule de Faupel (calcul [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"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":"","ast-disable-related-posts":"","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-5)","background-image":"","background-repeat":"repeat","background-position":"center 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