{"id":378236,"date":"2024-08-14T03:38:46","date_gmt":"2024-08-14T03:38:46","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/material-with-different-modulus-in-tension-and-compression\/"},"modified":"2024-08-14T03:38:46","modified_gmt":"2024-08-14T03:38:46","slug":"material-with-different-modulus-in-tension-and-compression","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/material-with-different-modulus-in-tension-and-compression\/","title":{"rendered":"material with different modulus in tension and compression"},"content":{"rendered":"<p>I&#8217;m trying to model hydrogel material fabricated by our group that appears isotropic, linearly elastic in tension and compression, but has a different elastic modulus in tension and compression. I can&#8217;t find an lsdyna material that would allow me to model this. Hyperelastic materials like the Ogden or generalized hyperelastic models give poor fits to my experimental data. How would I model this, is there a material in dyna that I&#8217;m missing?<\/p>\n","protected":false},"template":"","class_list":["post-378236","topic","type-topic","status-publish","hentry","topic-tag-add-material","topic-tag-bilinear-isotropic","topic-tag-elastic-modulus-1","topic-tag-hyperelastic-material"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["437982","37202"],"_bbp_author_ip":["216.30.181.121"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["349"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["1"],"_bbp_topic_id":["378236"],"_bbp_forum_id":["27814"],"_bbp_engagement":["37202","437982"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["378573"],"_bbp_last_active_id":["378573"],"_bbp_last_active_time":["2024-08-14 13:57:18"]},"test":"tc2fhvirginia-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/378236","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\/378236\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=378236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}