{"id":199711,"date":"2021-12-07T07:35:55","date_gmt":"2021-12-07T07:35:55","guid":{"rendered":"\/forum\/forums\/reply\/199711\/"},"modified":"2021-12-07T08:19:56","modified_gmt":"2021-12-07T08:19:56","slug":"199711","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/199711\/","title":{"rendered":"Reply To: How to fix boundary in Buckling Analysis"},"content":{"rendered":"<p>Hi<\/p>\n<p>Just apply a remote displacement on the the top and bottom faces which has behaviour rigid.<br \/>\n(So 2 remote displacements in total, one for the top face and one for the bottom)<br \/>\nWhere you apply the force push down (say with 1 mm) with  the degree of freedom in the direction of the applied force, and fix the other 5. On the fixed opposite end fix all 6 dof.<br \/>\nLook at the reaction which has the 1 mm down displacement in order to get the buckling force.<br \/>\nThe buckling force is just the reaction from the static analysis times the eigenvalue obtained by the buckling solver. So say the reaction is 100 N and the eigenvalue for the first buckling mode is 2 then the buckling load is 2*100 N.<br \/>\nAll the best<\/p>\n<p>Erik<\/p>\n<p>PS: If one wants a force instead of a down movement in the static, then create 2 remote points on these 2 faces (top and bottom), apply remote displacement to one (remote point) leaving the dof free (fix the other 5) in the direction of the force and then apply a remote force to that remote point. On the other side (fixed) just use a remote displacement with all dof fixed. See below for this approach:<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/414\/TPRLI3UBCYIW.png\" width=\"450\" height=\"782\" \/><\/p>\n","protected":false},"template":"","class_list":["post-199711","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/199711","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\/199711\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=199711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}