


{"id":304290,"date":"2023-08-31T09:01:14","date_gmt":"2023-08-31T09:01:14","guid":{"rendered":"\/forum\/forums\/topic\/meshing-issue-disorted-elements-at-some-nodes\/"},"modified":"2023-08-31T09:02:31","modified_gmt":"2023-08-31T09:02:31","slug":"meshing-issue-disorted-elements-at-some-nodes","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/meshing-issue-disorted-elements-at-some-nodes\/","title":{"rendered":"Meshing issue (disorted elements at some nodes)"},"content":{"rendered":"<p>Hello there,<\/p>\n<p>I am performing a cold bend thin glass in static structural analysis where I need to bend thin glass onto a rigid structure.<\/p>\n<p>so here are the images for each setup.&nbsp;&nbsp;<\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693471778-2,1.PNG\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693471778-2,1.PNG\" alt=\"\" width=\"1674\" height=\"667\"><\/a> I took body sizing of 25mm for both bodies.<\/p>\n<p>The top body is the contact and the lower body is the target in the contact setting with a frictionless and adjust-to-touch treatment.&nbsp;<\/p>\n<p>the analysis settings are shown below with a lower body having a rigid setup and the upper body having pressure on the lower surface.<\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472037-1,10.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472037-1,10.PNG\" alt=\"\"><\/a><\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472057-1,9.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472057-1,9.PNG\" alt=\"\"><\/a><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472542-1,8.PNG\" alt=\"\"><\/p>\n<p>the body has a symmetry on two sides as shown in below pictures&nbsp;<\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472113-1,5.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472113-1,5.PNG\" alt=\"\"><\/a><\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472128-1,6.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472128-1,6.PNG\" alt=\"\"><\/a><\/p>\n<p>now the problem is when the analysis is performed the top body tries to move towards the lower body but the elements at the edge are getting distorted and are unable to find the target location to converge in the below images i shown the reference<a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472260-2,2.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472260-2,2.PNG\" alt=\"\"><\/a><\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472286-2,3.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472286-2,3.PNG\" alt=\"\"><\/a><\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472301-2,4.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472301-2,4.PNG\" alt=\"\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>So i need a solution where the mesh of the top body have a gradient mesh or a adaptive mesh so i used this Nonlinear adaptive region i got a converged solution but the stress are 3-4x times the actual value.<\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472431-1,4.PNG\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/31-08-2023-1693472431-1,4.PNG\" alt=\"\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>so can some one suggest how i can refine a gradient mesh ??<\/p>\n<p>Thank you<\/p>\n<p>Suresh Varma.<\/p>\n","protected":false},"template":"","class_list":["post-304290","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["292110","58821"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," 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11:48:56"]},"test":"sureshvarma-penmesthagmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/304290","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\/304290\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=304290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}