{"id":391668,"date":"2024-10-29T01:45:50","date_gmt":"2024-10-29T01:45:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/about-convergence-issue-of-simple-3d-model-applied-large-deflection-option\/"},"modified":"2024-10-29T06:29:40","modified_gmt":"2024-10-29T06:29:40","slug":"about-convergence-issue-of-simple-3d-model-applied-large-deflection-option","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/about-convergence-issue-of-simple-3d-model-applied-large-deflection-option\/","title":{"rendered":"About convergence issue of simple 3D model applied large deflection option"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello!&lt;\/p&gt;&lt;p&gt;I&#8217;m conducting compression test of quarter cylinder&lt;\/p&gt;&lt;p&gt;It is composed by upper press, lower press and quartercylinder&lt;\/p&gt;&lt;p&gt;Cylinder has 8 mm height and it compressed into 4 mm by upper press&lt;\/p&gt;&lt;p&gt;Cylinder has non-linear properties(attatched as picture) and upper, lower press has rigid body(set extreme high young&#8217;s modulus, poisson ratio = 0)&lt;\/p&gt;&lt;p&gt;So, I think deformation has a large value so large deflection option must be checked&lt;\/p&gt;&lt;p&gt;Analysis started and it&#8217;s convergence failed&lt;\/p&gt;&lt;p&gt;Error occured at convergence gauge at 16% and I attached error result picture&lt;\/p&gt;&lt;p&gt;&lt;\/p&gt;&lt;p&gt;I attached analysis condition picture too&lt;\/p&gt;&lt;p&gt;I raise initial substep into 1000 but it was failed too&lt;\/p&gt;&lt;p&gt;With unchecked large deflection option, convergence completed&lt;\/p&gt;&lt;p&gt;How can I converge this problem?&lt;\/p&gt;&lt;p&gt;regard&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/29-10-2024-1730166254-multi linear properties.JPG\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/29-10-2024-1730166333-question picture(modified)(small byte).jpg\" alt=\"\" \/>&lt;\/p&gt;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/29-10-2024-1730183332-result.JPG\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-391668","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["166.104.90.125"],"_btv_view_count":["158"],"_bbp_topic_status":["unanswered"],"_edit_last":["58016"],"_bbp_revision_log":["a:1:{i:391682;a:2:{s:6:\"author\";i:58016;s:6:\"reason\";s:0:\"\";}}"],"_bbp_subscription":["240","58016"],"_bbp_topic_id":["391668"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","58016"],"_bbp_voice_count":["2"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["392951"],"_bbp_last_active_id":["392951"],"_bbp_last_active_time":["2024-11-06 11:33:00"]},"test":"joojaehoonhanyang-ac-kr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/391668","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/391668\/revisions"}],"predecessor-version":[{"id":391682,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/391668\/revisions\/391682"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=391668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}