{"id":357390,"date":"2024-03-16T06:44:19","date_gmt":"2024-03-16T06:44:19","guid":{"rendered":"\/forum\/forums\/topic\/ogden-material-models-are-used-to-show-anomalies-in-ls-dyna\/"},"modified":"2024-03-16T06:44:19","modified_gmt":"2024-03-16T06:44:19","slug":"ogden-material-models-are-used-to-show-anomalies-in-ls-dyna","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ogden-material-models-are-used-to-show-anomalies-in-ls-dyna\/","title":{"rendered":"Ogden material models are used to show anomalies in LS-DYNA"},"content":{"rendered":"<p>Hello everyone, I got the stress-strain curve of uniaxial compression test of a foam, and used it to build its Ogden material model in the engineering database, as shown in the figure. I used the fitting function of ANSYS to get the parameters of the material formula. When I used it for Droptest emulation, the solver gave me an error and I couldn&#8217;t figure out why. In addition, I found a rubber 1 material in the engineering database, but it can normally participate in calculation. I couldn&#8217;t find the reason for my calculation failure. I hope you can help me if you are in the same situation as me, thank you<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/16-03-2024-1710571372-1.jpg\" alt=\"\"><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/16-03-2024-1710571394-2.jpg\" alt=\"\"><\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/16-03-2024-1710571417-3.jpg\" alt=\"\"><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-357390","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["24532","13468"],"_bbp_author_ip":["168.143.243.14"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["377"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["357390"],"_bbp_forum_id":["27814"],"_bbp_engagement":["13468","24532"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["357890"],"_bbp_last_active_id":["357890"],"_bbp_last_active_time":["2024-03-19 13:14:47"]},"test":"1790299329qq-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/357390","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\/357390\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=357390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}