{"id":33711,"date":"2019-03-05T19:35:34","date_gmt":"2019-03-05T19:35:34","guid":{"rendered":"\/forum\/forums\/topic\/what-material-property-should-be-used-for-tpu-polymer\/"},"modified":"2019-03-05T19:35:34","modified_gmt":"2019-03-05T19:35:34","slug":"what-material-property-should-be-used-for-tpu-polymer","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/what-material-property-should-be-used-for-tpu-polymer\/","title":{"rendered":"What material property should be used for TPU polymer ?"},"content":{"rendered":"<p>Hello,<\/p>\n<p><\/p>\n<p>I&nbsp;am using&nbsp;multi-linear material&nbsp;property for TPU (thermoplastic polyurethane) polymer up to 70% of strain. As stress-strain curve for TPU is non-linear after 10% strain, I used Linear elastic (Isotropic elasticity) and Plasticity (Multilinear Isotropic hardening). Would this be correct ? as I do not need to use hyper-elastic models due to some constraints. I used Young&#8217;s modulus of 20 MPa and Poisson&#8217;s ratio 0.48.&nbsp;<img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a0187465-9485-4112-a6ea-a989012a70dd\/72a8019f-884c-4cba-ae32-aa07013ecd51_capture.jpg?width=690&amp;upscale=false\" alt=\"Usual S-S curve of TPU\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a0187465-9485-4112-a6ea-a989012a70dd\/1aba6c1c-3e27-49f7-8826-aa07013f4d70_capture.jpg?width=690&amp;upscale=false\" alt=\"Multi-linear curve\"><\/p>\n","protected":false},"template":"","class_list":["post-33711","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["5883"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["3105"],"_bbp_subscription":["237671","290315"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["33711"],"_bbp_forum_id":["27791"],"_bbp_engagement":["10","159971","290315"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["295307"],"_bbp_last_active_id":["295307"],"_bbp_last_active_time":["2023-07-28 07:45:05"]},"test":"karun00162"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/33711","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\/33711\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=33711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}