{"id":168012,"date":"2022-04-01T22:06:56","date_gmt":"2022-04-01T22:06:56","guid":{"rendered":"\/forum\/forums\/topic\/bolt-pretension-analysis-shows-unrealistic-stress\/"},"modified":"2022-04-06T00:51:41","modified_gmt":"2022-04-06T00:51:41","slug":"bolt-pretension-analysis-shows-unrealistic-stress","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/bolt-pretension-analysis-shows-unrealistic-stress\/","title":{"rendered":"Bolt Pretension Analysis shows unrealistic stress"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>I&#039;ve been fighting with this project for months now and it&#039;s coming to a head now that I&#039;ve verified my theory work with the CAD work. The gimmick is that the design aspect is only functionally correct due to the lack of specific details entailing thread pitch and so on. The issue I have is that the stress curve along the bolt length axis has a parabolic curve instead of one that would be best described as an elastic-perfectly plastic curve style. Given that the bolts stick out of the bottom of the pressure vessel plate ring, they should be experiencing the lowest stress on the free end since it has the most opportunity to deform.<\/p>\n<p>I&#039;ve attached pictures and the zip files below, thank y&#039;all ahead of time for looking into this one. My theory answer is matlab code specifically targeting deformation and with the forces involved should be ~0.2mm give or take 0.05mm.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/107\/ML2QHN8E0TCB.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/107\/ML2QHN8E0TCB.png\" alt=\"AnsysWBU_7vEFNU87ri.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-168012","topic","type-topic","status-closed","hentry","topic-tag-bolt-pretension","topic-tag-bolted-connection-1","topic-tag-stress-result","topic-tag-von-mises-stress"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["1711"],"_bbp_likes_count":["0"],"_bbp_subscription":["251449"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["168012"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","251449"],"_bbp_voice_count":["2"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["210485"],"_bbp_last_active_id":["210485"],"_bbp_last_active_time":["2022-04-06 00:51:41"]},"test":"albert-dusseaultmaine-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/168012","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/168012\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=168012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}