{"id":366537,"date":"2024-05-12T10:14:33","date_gmt":"2024-05-12T10:14:33","guid":{"rendered":"\/forum\/forums\/topic\/cast-iron-model-for-engineered-cementitious-concrete\/"},"modified":"2024-05-12T10:34:10","modified_gmt":"2024-05-12T10:34:10","slug":"cast-iron-model-for-engineered-cementitious-concrete","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cast-iron-model-for-engineered-cementitious-concrete\/","title":{"rendered":"Cast iron model for Engineered cementitious concrete"},"content":{"rendered":"<p>Hello everyone,<\/p>\n<p>I am currently facing a problem with implementing the cast iron plasticity model to simulate engineered cementitious concrete (ECC) strain-hardening behavior. For my master&acute;s thesis, I need to use the Cast iron model to input the stress-strain relation of the ECC material for tension and compression zones separately. I used a command object to embed the properties of the material, but I could not get the solution as the solver threw errors every time I started the simulation.&nbsp;<\/p>\n<p>The stress-strain values from experimental data: The Young&acute;s modulus is 20.6 GPa, and the Poisson&acute;s ratio is 0.15.<\/p>\n<p>&nbsp;<a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/12-05-2024-1715508508-Screenshot 2024-05-12 120627.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/12-05-2024-1715508508-Screenshot 2024-05-12 120627.png\" alt=\"\"><\/a> <a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/12-05-2024-1715508733-Screenshot 2024-05-12 120503.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/12-05-2024-1715508733-Screenshot 2024-05-12 120503.png\" alt=\"\"><\/a><\/p>\n<p>Here are the error and warning messages shown in the solution information:<\/p>\n<div id=\"paraDiv\" class=\"text-color-primary\" style=\"display: inline\">\n<p id=\"paragraphData\" class=\" paragraphText text-color-primary\" style=\"font-size: 12px;display: inline\">*** WARNING ***&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CP =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.016&nbsp;&nbsp; TIME= 12:12:37<br \/>&nbsp;Material number 3 (used by element 213951) should normally have at&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br \/>&nbsp;least one MP or one TB type command associated with it.&nbsp; Output of&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br \/>&nbsp;energy by material may not be available.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/p>\n<p>&nbsp;*** ERROR ***&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CP =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.016&nbsp;&nbsp; TIME= 12:12:37<br \/>&nbsp;For material 1 at temperature 22, the initial slope (205555.556) of the <br \/>&nbsp;stress-strain curve based on the TB,UNIAXIAL table with option (COMP)&nbsp;&nbsp; <br \/>&nbsp;is less than EX (206000).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/p>\n<p>&nbsp;*** ERROR ***&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CP =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.016&nbsp;&nbsp; TIME= 12:12:37<br \/>&nbsp;For material 1 at temperature 22, the initial slope (175000) of the&nbsp;&nbsp;&nbsp;&nbsp; <br \/>&nbsp;stress-strain curve based on the TB,UNIAXIAL table with option (TENS)&nbsp;&nbsp; <br \/>&nbsp;is less than EX (206000).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/p>\n<p>&nbsp;*** ERROR ***&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CP =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.031&nbsp;&nbsp; TIME= 12:12:37<br \/>&nbsp;The step data was checked and there were errors found.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br \/>&nbsp; Please check output or errors file (&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br \/>&nbsp;C:\\Users\\gorur\\Downloads\\ECC_Model\\_ProjectScratch\\Scr011E\\file0.err )&nbsp; <br \/>&nbsp;for messages.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/p>\n<p>&nbsp;*** NOTE ***&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CP =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.031&nbsp;&nbsp; TIME= 12:12:37<br \/>&nbsp;This nonlinear analysis defaults to using the full Newton-Raphson&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br \/>&nbsp;solution procedure.&nbsp; This can be modified using the NROPT command.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/p>\n<p>&nbsp;*** NOTE ***&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CP =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2.031&nbsp;&nbsp; TIME= 12:12:37<br \/>&nbsp;The conditions for direct assembly have been met.&nbsp; No .emat or .erot&nbsp;&nbsp;&nbsp; <br \/>&nbsp;files will be produced.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n<\/div>\n","protected":false},"template":"","class_list":["post-366537","topic","type-topic","status-closed","hentry","topic-tag-command","topic-tag-composite-material","topic-tag-concrete-hardening-2","topic-tag-concrete-non-linear","topic-tag-error","topic-tag-mechanical"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["73014","99","88","57568"],"_bbp_author_ip":["184.24.96.177"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["660"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1715509928:310105"],"_bbp_likes_count":["1"],"_bbp_topic_id":["366537"],"_bbp_forum_id":["27791"],"_bbp_engagement":["88","99","57568","73014"],"_bbp_voice_count":["4"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["373875"],"_bbp_last_active_id":["373875"],"_bbp_last_active_time":["2024-07-28 10:07:02"]},"test":"onur-goruricloud-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/366537","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/366537\/revisions"}],"predecessor-version":[{"id":366538,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/366537\/revisions\/366538"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=366537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}