{"id":40410,"date":"2020-01-26T16:18:53","date_gmt":"2020-01-26T16:18:53","guid":{"rendered":"\/forum\/forums\/topic\/twisting-of-very-thin-layered-sheet\/"},"modified":"2020-01-26T16:18:53","modified_gmt":"2020-01-26T16:18:53","slug":"twisting-of-very-thin-layered-sheet","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/twisting-of-very-thin-layered-sheet\/","title":{"rendered":"Twisting of very thin layered sheet"},"content":{"rendered":"<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">Hallo Ansys student community,<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">I am facing a problem.<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">I have a very thin metal &amp; alloy sheet (0.1mm) of 4 layers. The length of the plate =70mm and width is 4mm. Among the 4layers one is only 1micrometer thick. I have to fix the sheet at one end and I have to provide a 360 degree twist on to the other side. I had given bonded contact between the layers. I had given 360 degree in a single step and given 100 substep. But the problem doesnt converge. Inorder to check; I had given 45 degree twist and 90 degree twist. This time the problem converged. But I want to give 360 degree twist. Then I had given 360 degree twist in 8 steps with 45 degree each and the substep of each was 100. Then also the problem doesnt converge. I also tried by giving very fine mesh. But the problem doesnt converge.&nbsp;<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">All the time it is showing the message &#8220;The solver engine was unable to converge on a solution for the nonlinear problem as constrained.&nbsp; Please see the Troubleshooting section of the Help System for more information.&#8221;<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">which is the best method to get&nbsp;this&nbsp;problem solved? is it increasing the number of elements by reducing the mesh size? or increasing the the number of steps? or increasing the number of substeps?<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">Please help me to resolve the issue.<\/p>\n","protected":false},"template":"","class_list":["post-40410","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["12590"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["772"],"_bbp_subscription":["245550"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["40410"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","171205"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["103592"],"_bbp_last_active_id":["103592"],"_bbp_last_active_time":["2020-01-27 15:57:53"]},"test":"gijoys4v"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/40410","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\/40410\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=40410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}