{"id":286484,"date":"2023-05-31T08:28:08","date_gmt":"2023-05-31T08:28:08","guid":{"rendered":"\/forum\/forums\/topic\/hyperelastic-mooneyrivlin-vs-neo-hookean\/"},"modified":"2023-06-06T12:38:11","modified_gmt":"2023-06-06T12:38:11","slug":"hyperelastic-mooneyrivlin-vs-neo-hookean","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/hyperelastic-mooneyrivlin-vs-neo-hookean\/","title":{"rendered":"Hyperelastic : Mooney\u2013Rivlin vs. neo-hookean"},"content":{"rendered":"<div>When I was doing nonlinear simulation of large deformation of breast compression, I saw that some papers used hyperelastic Mooney&ndash;Rivlin model, and some papers used hyperelastic neo-hookean model in the selection of breast material properties.<\/div>\n<div>&nbsp;<\/div>\n<div>I used Mooney&ndash;Rivlin at the beginning, and the result was element highly distorted error. Later, I switched to neo-hookean and the other conditions were the same, and the calculation converged successfully.<\/div>\n<div>&nbsp;<\/div>\n<div>I would like to ask what is the main difference between Mooney&ndash;Rivlin and neo-hookean? Why can the highly distorted element be solved after changing the material properties? The calculation results using neo-hookean will be more inaccurate than Mooney&ndash;Rivlin ?<\/p>\n<p>Thanks for your help!!!<\/p><\/div>\n","protected":false},"template":"","class_list":["post-286484","topic","type-topic","status-closed","hentry","topic-tag-hyperelasticity","topic-tag-hyperplastic","topic-tag-material-properties"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["285206","99"],"_bbp_author_ip":["96.7.74.173"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["2035"],"_edit_lock":["1686055072:62321"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["286484"],"_bbp_forum_id":["27791"],"_bbp_engagement":["99","285206"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["286775"],"_bbp_last_active_id":["286775"],"_bbp_last_active_time":["2023-06-01 19:57:50"]},"test":"jiaweiii0610gapp-nthu-edu-tw"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/286484","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\/286484\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=286484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}