{"id":367483,"date":"2024-05-19T23:15:40","date_gmt":"2024-05-19T23:15:40","guid":{"rendered":"\/forum\/forums\/topic\/artifically-high-stress-due-to-thermo-structural-analysis\/"},"modified":"2024-05-19T23:15:40","modified_gmt":"2024-05-19T23:15:40","slug":"artifically-high-stress-due-to-thermo-structural-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/artifically-high-stress-due-to-thermo-structural-analysis\/","title":{"rendered":"Artifically High Stress Due to Thermo-structural Analysis"},"content":{"rendered":"<p>Hello,<\/p>\n<div class=\"avatar-gutter ng-tns-c3570612593-109 ng-star-inserted\">\n<div class=\"resize-observable\">&nbsp;<\/div>\n<\/div>\n<p><!--&gt;--><!--&gt;<\/p>\n\n\n\n<div class=\"response-container-content ng-tns-c3570612593-109\">--><!--&gt;--><!--&gt;--><\/p>\n<div class=\"response-content ng-tns-c3570612593-109\"><!--&gt;--><\/p>\n<div class=\"markdown markdown-main-panel\" dir=\"ltr\">\n<h2 class=\"\" data-sourcepos=\"1:1-1:63\">Sure, here is the direct translation of the text to English:<\/h2>\n<p data-sourcepos=\"3:1-3:63\"><strong>Thermo-Structural Analysis for Turbocharger Turbine Housing<\/strong><\/p>\n<p data-sourcepos=\"5:1-5:17\">I am working on a thermo-structural analysis for a turbocharger turbine housing for my school project. I need to define supports from the boltholes in the flange areas of my part, which consists only of the turbine housing (as required). After completing my steady-state thermal analysis with appropriate boundary conditions, I couple the results with my static structural analysis. When I define fixed and cylindrical supports to account for thermal expansion, I observe abnormally high stresses (around 5000 MPa) around the boltholes. I do not encounter any issues when I apply the 3-2-1 method to vertices, but I am required to define supports from the inner surfaces of the boltholes for the part that will be fixed with the boltholes. Additionally, I will optimize the part and modify the shape of the boltholes to examine the temperature-stress distributions. Applying the 3-2-1 method makes the boltholes in the flange area seem ineffective.&nbsp;&nbsp;<\/p>\n<p data-sourcepos=\"5:1-5:17\">Note: In addition, I have tried all combinations of free\/fixed options for the Tangential-radial-axial options for Cylindrical Support. Also, i did apply fine mesh around boltholes. But results were not changed.<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/19-05-2024-1716160522-ScreenShot_20.05.2024_02_14_59.png\" alt=\"\" width=\"558\" height=\"330\"><\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"template":"","class_list":["post-367483","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello, Sure, here is the direct translation of the text to English:Thermo-Structural Analysis for Turbocharger Turbine HousingI am working on a thermo-structural analysis for a turbocharger turbine housing for my school project. 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