{"id":355576,"date":"2024-03-06T09:27:53","date_gmt":"2024-03-06T09:27:53","guid":{"rendered":"\/forum\/forums\/topic\/calculating-contact-stiffness\/"},"modified":"2024-03-06T09:27:53","modified_gmt":"2024-03-06T09:27:53","slug":"calculating-contact-stiffness","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-contact-stiffness\/","title":{"rendered":"Calculating contact stiffness"},"content":{"rendered":"<p>Hello,<br \/>I&#8217;m currently working on a thesis project and I&#8217;m trying to approximate a contact stiffness in order to compare the results of my simulation to those from a self written MATLAB routine in which I specify a contact stiffness as a concrete value. I&#8217;m using shells and what I can find is k = alpha*K*A \/ (max shell diagonal) where k is the contact stiffness, alpha is a penalty scale factor, K is the bulk modulus and A is the segment area.<\/p>\n<p>Assuming this is the right way to calculate it and provided I use a mesh with equally sized elements (that is, I know the max shell diagonal), how do I find alpha and A? The contact I&#8217;m looking at is a turbine blade edge coming into contact with the surrounding stator wall surface.<\/p>\n<p>Thanks in advance for the help.<\/p>\n","protected":false},"template":"","class_list":["post-355576","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["340691","3161"],"_bbp_author_ip":["23.52.43.16"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1321"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["1"],"_bbp_topic_id":["355576"],"_bbp_forum_id":["27814"],"_bbp_engagement":["3161","340691"],"_bbp_voice_count":["2"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["355615"],"_bbp_last_active_id":["355615"],"_bbp_last_active_time":["2024-03-06 13:33:57"]},"test":"withen-8student-ltu-se"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/355576","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\/355576\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=355576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}