{"id":33145,"date":"2019-02-07T21:45:20","date_gmt":"2019-02-07T21:45:20","guid":{"rendered":"\/forum\/forums\/topic\/nonlinear-simulation-vs-linear-simulation\/"},"modified":"2019-02-07T21:45:20","modified_gmt":"2019-02-07T21:45:20","slug":"nonlinear-simulation-vs-linear-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/nonlinear-simulation-vs-linear-simulation\/","title":{"rendered":"Nonlinear Simulation Vs Linear Simulation"},"content":{"rendered":"<p><span style=\"font-family: 'Calibri',sans-serif; font-size: 11pt; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"><span style=\"color: #000000;\">I&rsquo;m trying to compare ANSYS nonlinear simulation results vs ANSYS linear simulation results and I had a question about multilinear kinematic hardening. <\/span><\/span><\/p>\n<p><\/p>\n<p><span style=\"font-family: 'Calibri',sans-serif; font-size: 11pt; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"><span style=\"color: #000000;\"><span style=\"font-family: 'Calibri',sans-serif; font-size: 11pt; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"><span style=\"color: #000000;\"><span style=\"font-family: 'Calibri',sans-serif; font-size: 11pt; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"><span style=\"color: #000000;\">The way that I have my simulations set up currently is that my linear\/nonlinear simulations are pulling the same material data from the same place &ndash; however, the linear model has the property &ldquo;Multilinear Kinematic Hardening&rdquo; with the accompanying stress\/plastic strain curve data suppressed while the nonlinear model has that property active. However, I&rsquo;m encountering an issue where if the same value at a low displacement is applied to both models, the resulting elastic strain results are not equal. My understanding of multilinear kinematic hardening is that this setting will only apply when plastic strain begins to occur, thus meaning that at low deformations and thus low elastic strain, the accompanying stress strain curve data with multilinear kinematic hardening shouldn&rsquo;t come to play; hence why I&rsquo;m having trouble understanding why I&rsquo;m getting different strains using the same displacement. I&#8217;d appreciate insight here.<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"template":"","class_list":["post-33145","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["5317"],"_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":["790"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["33145"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","162162"],"_bbp_voice_count":["2"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["77812"],"_bbp_last_active_id":["77812"],"_bbp_last_active_time":["2019-02-13 21:54:32"]},"test":"harryzhou4498"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/33145","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\/33145\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=33145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}