{"id":976,"date":"2019-01-21T21:20:24","date_gmt":"2019-01-21T21:20:24","guid":{"rendered":"http:\/\/johnbrear-plantintegrity.com\/?page_id=976"},"modified":"2019-01-21T21:24:55","modified_gmt":"2019-01-21T21:24:55","slug":"defect-assessment-without-data","status":"publish","type":"page","link":"https:\/\/johnbrear-plantintegrity.com\/?page_id=976","title":{"rendered":"Defect assessment without data"},"content":{"rendered":"<figure id=\"attachment_977\" aria-describedby=\"caption-attachment-977\" style=\"width: 428px\" class=\"wp-caption alignright\"><img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/Reactor-tops-JW.jpg\" alt=\"\" width=\"428\" height=\"415\" class=\"size-full wp-image-977\" srcset=\"https:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/Reactor-tops-JW.jpg 428w, https:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/Reactor-tops-JW-300x291.jpg 300w\" sizes=\"(max-width: 428px) 100vw, 428px\" \/><figcaption id=\"caption-attachment-977\" class=\"wp-caption-text\">Reactor vessel nozzles<\/figcaption><\/figure>\r\n<p><strong>Component:<\/strong><\/p>\r\n<ul>\r\n    <li>A catalytic reformer reactor vessel with a history of cracking at the nozzle welds, but little detailed operating data relevant to the critical location<\/li>\r\n<\/ul>\r\n<p><strong>Objective:<\/strong><\/p>\r\n<ul>\r\n    <li>To determine the remaining life of the nozzle welds after grinding to NDE clear status<\/li>\r\n<\/ul>\r\n<p><strong>Approach:<\/strong><\/p>\r\n<ul>\r\n    <li>Determination of historic crack growth rates from inspection data<\/li>\r\n    <li>Calibration of a creep crack growth model to the historic data<\/li>\r\n    <li>Application of the model to future operation, at the current reduced wall thickness<\/li>\r\n<\/ul>\r\n<p><strong>Benefits:<\/strong><\/p>\r\n<ul>\r\n    <li>A safe prediction of remaining life, allied to an inspection plan by which the life prediction could be validated<\/li>\r\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Component: A catalytic reformer reactor vessel with a history of cracking at the nozzle welds, but little detailed operating data relevant to the critical location Objective: To determine the remaining life of the nozzle welds after grinding to NDE clear status Approach: Determination of historic crack growth rates from inspection data Calibration of a creep &hellip; <a href=\"https:\/\/johnbrear-plantintegrity.com\/?page_id=976\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Defect assessment without data<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":157,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-976","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=976"}],"version-history":[{"count":3,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/976\/revisions"}],"predecessor-version":[{"id":980,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/976\/revisions\/980"}],"up":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/157"}],"wp:attachment":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}