{"id":372294,"date":"2024-07-17T08:03:45","date_gmt":"2024-07-17T08:03:45","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/substep-does-not-converge-eventough-criteria-are-met\/"},"modified":"2024-07-17T08:03:45","modified_gmt":"2024-07-17T08:03:45","slug":"substep-does-not-converge-eventough-criteria-are-met","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/substep-does-not-converge-eventough-criteria-are-met\/","title":{"rendered":"Substep does not converge eventough criteria are met"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I am performing a contact analysis with several beams beeing rotated into contact. The bottom ends of the beams are unconstrained, except the split beams (see picture below) have their nodes coupled with each other to simulate linear periodicity.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/17-07-2024-1721202396-mceclip0.png\" width=\"562\" height=\"451\"><\/p>\n<p>Between the beams frictional contacts are set, also between beams and casing frictional contacts are set.<\/p>\n<p>For the first row the simulation kind of works (penetration is a little high, but I can adapt the contact stiffness).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/17-07-2024-1721202535-mceclip1.png\" width=\"295\" height=\"358\"> &nbsp; &nbsp; <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/17-07-2024-1721202586-mceclip2.png\" width=\"452\" height=\"350\"><\/p>\n<p>But after this point the simulation fails to converge further supsteps, eventough the solution output states that force, moment and displacement criteria are met during iterations:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/17-07-2024-1721203028-mceclip3.png\"><\/p>\n<p>In earlier supsteps the solution stops and moves on to the next substep.&nbsp;<\/p>\n<p>What could be the problem here? Are there other criteria I should look at? Or should I use transient mechanical, eventough there should be no further movement after all the beams have arranged?<\/p>\n<p>Thanks in advance for any hints!<\/p>\n","protected":false},"template":"","class_list":["post-372294","topic","type-topic","status-closed","hentry","topic-tag-beam","topic-tag-contact","topic-tag-convergence","topic-tag-static-structural"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["57984","88","79","18229"],"_bbp_author_ip":["129.247.247.240"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["296"],"_bbp_topic_status":["unanswered"],"_bbp_notification_enabled":["57984","57984"],"_bbp_topic_id":["372294"],"_bbp_forum_id":["27791"],"_bbp_engagement":["79","88","18229","57984"],"_bbp_voice_count":["4"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["373637"],"_bbp_last_active_id":["373637"],"_bbp_last_active_time":["2024-07-25 16:02:38"]},"test":"moritz-ursprungdlr-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/372294","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\/372294\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=372294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}