{"id":365095,"date":"2024-05-01T20:22:28","date_gmt":"2024-05-01T20:22:28","guid":{"rendered":"\/forum\/forums\/reply\/365095\/"},"modified":"2024-05-01T20:22:28","modified_gmt":"2024-05-01T20:22:28","slug":"365095","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365095\/","title":{"rendered":"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench"},"content":{"rendered":"<p>&lt;p&gt;Thanks for the clarification.&nbsp;&lt;\/p&gt;&lt;p&gt;The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory).&nbsp; Frictional surfaces in Ansys are always free to separate at zero surface pressure.&nbsp; You might be able to achieve something similar to JKR by defining a nonzero cohesion real constant with RMODIF,cid,13, in a command object.&nbsp; See<a href=\"https:\/\/ansyshelp.ansys.com\/account\/secured?returnurl=\/Views\/Secured\/corp\/v241\/en\/ans_ctec\/Hlp_ctec_realkey.html%23strchofr3jla072099\"> Section 3.9<\/a> of the MAPDL Contact Technology Guide for details.&nbsp; If that does not work, you would likely have to write a customized user routine to capture this effect.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-365095","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/365095","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\/365095\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=365095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}