{"id":218502,"date":"2022-07-14T16:15:17","date_gmt":"2022-07-14T16:15:17","guid":{"rendered":"\/forum\/forums\/topic\/hertzian-contact-stress\/"},"modified":"2022-07-14T16:15:17","modified_gmt":"2022-07-14T16:15:17","slug":"hertzian-contact-stress","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/hertzian-contact-stress\/","title":{"rendered":"Hertzian contact stress"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I have been doing this exercise for Hertzian contacts:<\/p>\n<p>\/courses\/index.php\/courses\/hertz-contact-mechanics\/<\/p>\n<p>I have followed strictly, step by step, everything that was said and showed in the videos and read the parts for the analytical problem and final verification.<\/p>\n<p>My results are quite surprising, because the contact pressure and the force reaction are perfect; however, if I plot the maximum principal stress or the minimum principal stress (that are sigma_r and sigma_z in the analytical solution) the values are incredibly high.&nbsp;<\/p>\n<p>Also, I can&#8217;t use the APDL command that is given to calculate the contact area; the solver says that there is an error solving that solution. I have a recent version of Ansys, maybe that is the cause?<\/p>\n<p>I look forward for your opinions.<\/p>\n<p>P.S: I tried to solve the model with pure penalty and gave me the exact same results that of augmented lagrange.<\/p>\n","protected":false},"template":"","class_list":["post-218502","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["260076","126"],"_bbp_author_ip":["23.48.94.52"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1394"],"_oembed_4a62564e585fd2cde421e9d60022d600":["{{unknown}}"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["218502"],"_bbp_forum_id":["27791"],"_bbp_engagement":["126","260076"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["218828"],"_bbp_last_active_id":["218828"],"_bbp_last_active_time":["2022-07-19 08:25:48"]},"test":"marco-ballotta-2studenti-unipd-it"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/218502","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\/218502\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=218502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}