{"id":168856,"date":"2022-04-25T08:55:28","date_gmt":"2022-04-25T08:55:28","guid":{"rendered":"\/forum\/forums\/topic\/convergence-issues-in-deep-drawing-simulation\/"},"modified":"2022-04-25T10:31:31","modified_gmt":"2022-04-25T10:31:31","slug":"convergence-issues-in-deep-drawing-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergence-issues-in-deep-drawing-simulation\/","title":{"rendered":"Convergence issues in deep drawing simulation"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello everyone, <\/p>\n<p>I am running 3 deep drawing simulations with different punch and drawig edge radius. Two of the simulations converged without much difficulties but the third one isn&#039;t converging. In the two simulations which converged without much of a hassle, I saw a certain pattern in force convergence where the criterion increased from two digit number to a 6 digit number. I am not able to understand how this happened or how can I achieve this again for the simulation I am stuck on. I keep getting &#039;solution failed to converge&#039; error after 10-12 hours of running the simulation.<\/p>\n<p><\/p>\n<\/p>\n<p>I am using weak springs, MPC contacts, large displacements on, initial contact results dont show gaps, force is applied gradually in 5 steps and a direct solver is used in all of the simulations.<\/p>\n<p><\/p>\n<\/p>\n<p>Please have a look at the pictures of the convergence criteria and also the model.<\/p>\n<p>I am stuck on this problem since last 1 month and I don&#039;t know how to proceed. Please help!<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/396\/9NDRHAE8WW28.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/396\/9NDRHAE8WW28.png\" alt=\"model.PNG\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-168856","topic","type-topic","status-closed","hentry","topic-tag-convergenceerror-1","topic-tag-nonlinearconvergenceissue-1","topic-tag-solutiondidnotconverge-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["330"],"_bbp_likes_count":["0"],"_bbp_subscription":["254434"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["168856"],"_bbp_forum_id":["27791"],"_bbp_engagement":["58821","254434"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["212958"],"_bbp_last_active_id":["212958"],"_bbp_last_active_time":["2022-04-25 10:31:31"]},"test":"shoaib-attarrwth-aachen-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/168856","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\/168856\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=168856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}