{"id":424143,"date":"2025-03-03T17:12:04","date_gmt":"2025-03-03T17:12:04","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3-point-bending-test-via-symmetry-mesh-convergence\/"},"modified":"2025-03-03T17:12:04","modified_gmt":"2025-03-03T17:12:04","slug":"3-point-bending-test-via-symmetry-mesh-convergence","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3-point-bending-test-via-symmetry-mesh-convergence\/","title":{"rendered":"3 point bending test via Symmetry? Mesh Convergence?"},"content":{"rendered":"

<p>Hi I am trying to conduct 3 point bending test using an explicit dynamic solution as I want the simulation to showcase failure on my nested cylindrical rods. Currently when I conduct my test, especially trying to find my results, I am struggling with run time being past 3 hours when I run a resolution higher than 4 on my contact surfaces. I was told to try cutting my model via symmetry to reduce the number of elements my computer has to solve, but I still want to simulate the breakage that I get when using my full scale model in explict dynamics. <\/p><p> <\/p><p>When I try to use the converge tool in the solution for my equivalent stress, it will not solve. Below I left screenshots of my contacts settings and how they are applied, as I just spent over 10+ hours running a solution for it to not even fully solve, and at this rate I spend more time waiting for my simulation to fail rather than get applicable data. <\/p><p> <\/p><p>I <\/p><p> <\/p><p>I thought of using instead of resolution as my way of converging, but use direct optimization using the parameters of my element size up to 3mm and my solution values of equivalent stress, max principal stress, and total deformation, however I am not sure if that will actually give a proper convergence that I actually need.<\/p><p> <\/p><p> <\/p><p><\/p><p><\/p><\/p>\n","protected":false},"template":"","class_list":["post-424143","topic","type-topic","status-publish","hentry","topic-tag-3-point-bending-1","topic-tag-convergence-issue","topic-tag-direct-optimization","topic-tag-explicit-dyanmic","topic-tag-mesh","topic-tag-meshing"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27791"],"_bbp_topic_id":["424143"],"_bbp_subscription":["510378","275204"],"_bbp_author_ip":["98.235.190.52"],"_bbp_last_reply_id":["424165"],"_bbp_last_active_id":["424165"],"_bbp_last_active_time":["2025-03-03 21:57:34"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["510378","275204"],"_btv_view_count":["191"],"_bbp_topic_status":["unanswered"]},"test":"jadenlongdongmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/424143","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\/424143\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=424143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}