{"id":453693,"date":"2026-03-04T03:41:06","date_gmt":"2026-03-04T03:41:06","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/unable-to-obtain-non-uniform-residual-stress-distribution-in-ismb-150\/"},"modified":"2026-03-04T03:41:06","modified_gmt":"2026-03-04T03:41:06","slug":"unable-to-obtain-non-uniform-residual-stress-distribution-in-ismb-150","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/unable-to-obtain-non-uniform-residual-stress-distribution-in-ismb-150\/","title":{"rendered":"Unable to Obtain Non-Uniform Residual Stress Distribution in ISMB 150"},"content":{"rendered":"

<p data-start=”181″ data-end=”194″>Dear Experts,<\/p><p data-start=”196″ data-end=”450″>I am currently performing a <strong data-start=”224″ data-end=”283″>nonlinear analysis of an uncorroded ISMB 150 steel beam<\/strong> using <strong data-start=”290″ data-end=”328″>solid elements in ANSYS Mechanical<\/strong>. As part of the study, I am attempting to introduce <strong data-start=”381″ data-end=”449″>residual stresses typically present in hot-rolled steel sections<\/strong>.<\/p><p data-start=”452″ data-end=”799″>However, I am facing difficulty in obtaining the <strong data-start=”501″ data-end=”554″>expected non-uniform residual stress distribution<\/strong> across the beam cross-section (compressive stresses near flange tips and tensile stresses near the web–flange junction). Despite defining the residual stress input, the results appear to be either uniform or not properly developed in the model.<\/p><p data-start=”801″ data-end=”853″>I would appreciate guidance on the following points:<\/p><\/p>\n

    <li data-start=”855″ data-end=”989″><p data-start=”858″ data-end=”989″>What is the recommended procedure to introduce <strong data-start=”905″ data-end=”938″>non-uniform residual stresses<\/strong> in solid element models of hot-rolled steel beams?<\/p><\/li>\n

    <li data-start=”990″ data-end=”1147″><p data-start=”993″ data-end=”1147″>Should residual stresses be applied using the <strong data-start=”1039″ data-end=”1096″>thermal analogy method (equivalent temperature field)<\/strong> or through <strong data-start=”1108″ data-end=”1146″>initial stress commands (INISTATE)<\/strong>?<\/p><\/li>\n

    <li data-start=”1148″ data-end=”1282″><p data-start=”1151″ data-end=”1282″>Are there specific solver settings or modeling precautions required when introducing residual stresses in a <strong data-start=”1259″ data-end=”1281″>nonlinear analysis<\/strong>?<\/p><\/li>\n<\/ol>\n

    <p data-start=”1284″ data-end=”1403″>Any suggestions or example approaches for modeling residual stresses in <strong data-start=”1356″ data-end=”1373″>ISMB sections<\/strong> would be greatly appreciated.<\/p><p data-start=”1405″ data-end=”1441″>Thank you for your time and support.<\/p><p data-start=”1443″ data-end=”1463″ data-is-last-node=”” data-is-only-node=””>Best regards,<br data-start=”1456″ data-end=”1459″>Gopi<br><br><\/p><p data-start=”1443″ data-end=”1463″ data-is-last-node=”” data-is-only-node=””> <\/p><p data-start=”1443″ data-end=”1463″ data-is-last-node=”” data-is-only-node=””><\/p><\/p>\n","protected":false},"template":"","class_list":["post-453693","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27791"],"_bbp_topic_id":["453693"],"_bbp_author_ip":["49.205.68.210"],"_bbp_last_reply_id":["454065"],"_bbp_last_active_id":["454065"],"_bbp_last_active_time":["2026-03-10 14:42:40"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["636415","20905"],"_btv_view_count":["59"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["20905"]},"test":"324203307006gvpce-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/453693","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\/453693\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=453693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}