{"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\/vi\/bundy-tube-burst-pressure-calculation-adopting-faupel-formula\/","title":{"rendered":"T\u00ednh to\u00e1n \u00e1p su\u1ea5t v\u1ee1 c\u1ee7a \u1ed1ng Bundy theo c\u00f4ng th\u1ee9c Faupel"},"content":{"rendered":"<p>B\u00e0i vi\u1ebft n\u00e0y gi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n l\u00fd thuy\u1ebft \u00e1p su\u1ea5t v\u1ee1 c\u1ee7a \u1ed1ng Bundy d\u1ef1a tr\u00ean C\u00f4ng th\u1ee9c Faupel (c\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t v\u1ee1 cho b\u00ecnh h\u00ecnh tr\u1ee5) v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho h\u1ea7u h\u1ebft c\u00e1c ph\u00e9p t\u00ednh \u00e1p su\u1ea5t v\u1ee1 c\u1ee7a \u1ed1ng\/\u0111\u01b0\u1eddng \u1ed1ng kim lo\u1ea1i.<\/p>\n<h3>C\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ea7u v\u00e0o<\/h3>\n<p>D<sub>0<\/sub>, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a \u1ed1ng, t\u00ednh b\u1eb1ng mm.<\/p>\n<p>t, chi\u1ec1u d\u00e0y c\u1ee7a \u1ed1ng, t\u00ednh b\u1eb1ng mm.<\/p>\n<p>\u03c3<sub>s<\/sub>, gi\u1edbi h\u1ea1n ch\u1ea3y c\u1ee7a \u1ed1ng, t\u00ednh b\u1eb1ng MPa.<\/p>\n<p>\u03c3<sub>b<\/sub>, c\u01b0\u1eddng \u0111\u1ed9 k\u00e9o c\u1ee7a \u1ed1ng, t\u00ednh b\u1eb1ng MPa.<\/p>\n<h3>T\u00ednh to\u00e1n<\/h3>\n<p>1. T\u1ef7 l\u1ec7 gi\u1eefa \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong c\u1ee7a \u1ed1ng\/\u0111\u01b0\u1eddng \u1ed1ng<\/p>\n<p style=\"padding-left: 30px;\">K=D<sub>0<\/sub>\/(D<sub>0<\/sub>-2t)<\/p>\n<p>2. \u00c1p su\u1ea5t n\u1ed5 c\u1ee7a \u1ed1ng\/\u0111\u01b0\u1eddng \u1ed1ng, t\u00ednh b\u1eb1ng 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>Ph\u01b0\u01a1ng ph\u00e1p t\u00f9y ch\u1ecdn<\/h3>\n<p>\u0110\u1ed1i v\u1edbi \u1ed1ng\/\u0111\u01b0\u1eddng \u1ed1ng th\u00e0nh m\u1ecfng c\u00f3 h\u1ec7 s\u1ed1 K nh\u1ecf h\u01a1n 1,1, \u00e1p su\u1ea5t n\u1ed5 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c \u0111\u01a1n gi\u1ea3n h\u00f3a, s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng k\u00ednh trung b\u00ecnh 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>B\u00e0i vi\u1ebft n\u00e0y gi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n l\u00fd thuy\u1ebft \u00e1p su\u1ea5t v\u1ee1 c\u1ee7a \u1ed1ng Bundy d\u1ef1a tr\u00ean C\u00f4ng th\u1ee9c Faupel (c\u00f4ng th\u1ee9c t\u00ednh \u00e1p su\u1ea5t v\u1ee1 cho b\u00ecnh h\u00ecnh tr\u1ee5) v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u t\u01b0\u01a1ng \u1ee9ng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u0169ng c\u00f3 th\u1ec3 \u00e1p [&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 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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[11],"tags":[],"class_list":["post-3730","post","type-post","status-publish","format-standard","hentry","category-tube-tech"],"_links":{"self":[{"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/posts\/3730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/comments?post=3730"}],"version-history":[{"count":0,"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/posts\/3730\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/media?parent=3730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/categories?post=3730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bundytubes.com\/vi\/wp-json\/wp\/v2\/tags?post=3730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}