{"id":397778,"date":"2024-12-17T16:07:58","date_gmt":"2024-12-17T16:07:58","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/397778\/"},"modified":"2024-12-17T16:07:58","modified_gmt":"2024-12-17T16:07:58","slug":"397778","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/397778\/","title":{"rendered":"Reply To: artificial stresses at the fixed points in thermo-structural analysis"},"content":{"rendered":"<p>&lt;p&gt;There are three sources of high stress at fixed supports.&nbsp; Poisson effect, constrained thermal expansion, singularity of a point support.&nbsp; With the 3-2-1 method you have eliminated the first two sources, but you still have high stress due to supporting the model at a point, which in the limit of mesh refinement has no area.&nbsp; You could just ignore this stress or you could create a small area to scope the support to.&nbsp; If you use deformable behavior the fixed support won&#8217;t produce high stress due to the first two sources.&nbsp; Or you could use a soft elastic support to support the model in y and then 2-1 lateral displacements to support the model in x and z.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-397778","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/397778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/397778\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=397778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}