{"id":357128,"date":"2024-03-14T15:41:39","date_gmt":"2024-03-14T15:41:39","guid":{"rendered":"\/forum\/forums\/topic\/problemogden-in-ls-dyna\/"},"modified":"2024-03-14T16:11:12","modified_gmt":"2024-03-14T16:11:12","slug":"problemogden-in-ls-dyna","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problemogden-in-ls-dyna\/","title":{"rendered":"Problem\uff1aOgden in LS-DYNA"},"content":{"rendered":"<p>Hello everyone, I encountered some problems when I used LS-DYNA module in ANSYS WB to do drop simulation analysis. I obtained the stress-strain curve of EPE material through uniaxial compression test, and created EPE material in the engineering database to input the test data and used second-order Ogden constitutive to fit the material as shown in the figure. When I solve in the LS-DYNA module when the system reported an error, I do not know how to solve, hope to have the big guy advice, thank you (I found that the Ogden model I defined worked fine in &#8220;Static structal&#8221;, but there were errors in LS-DYNA)<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/14-03-2024-1710430799-1.jpg\" alt=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/14-03-2024-1710430779-2.jpg\" alt=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/14-03-2024-1710430866-3.jpg\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-357128","topic","type-topic","status-closed","hentry","topic-tag-LS-DYNAruntime-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["24532","58821"],"_bbp_author_ip":["23.206.193.41"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["206"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["357128"],"_bbp_forum_id":["27791"],"_bbp_engagement":["24532","58821"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["357136"],"_bbp_last_active_id":["357136"],"_bbp_last_active_time":["2024-03-14 16:10:54"]},"test":"1790299329qq-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/357128","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\/357128\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=357128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}