{"id":368725,"date":"2024-05-27T12:33:03","date_gmt":"2024-05-27T12:33:03","guid":{"rendered":"\/forum\/forums\/topic\/understanding-nonlinearity-superelasticity\/"},"modified":"2024-05-27T12:33:03","modified_gmt":"2024-05-27T12:33:03","slug":"understanding-nonlinearity-superelasticity","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-nonlinearity-superelasticity\/","title":{"rendered":"Understanding nonlinearity\/superelasticity"},"content":{"rendered":"<p>Hi!&nbsp;<\/p>\n<p>I am trying to understand nonlinear material behavior, especially superelasticity.&nbsp;<\/p>\n<p>Looking at Ansys help for superelasticity, there is this idealized stress-strain-graph including the phase transformations (austenite-martensite), where &sigma;sAS marks the start of the austenite-to-martensite transformation. (Found here:&nbsp;<a href=\"https:\/\/ansyshelp.ansys.com\/account\/secured?returnurl=\/Views\/Secured\/corp\/v241\/en\/ans_mat\/smas.html?q=superelasticity\">4.15. Shape Memory Alloy (SMA) (ansys.com)<\/a>)<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/27-05-2024-1716812837-mceclip0.png\"><\/p>\n<p>Now to my question: Is it correct to assume that a superelastic material will behave like a linear elastic material in the elastic region (i. e. the linear part of the graph in the beginning of the load cycle up to &sigma;sAS)?&nbsp;<\/p>\n<p>In other words: Can I expect linearly elastic behavior if my stresses do not exceed &sigma;sAS?&nbsp;<\/p>\n<p>I&#8217;d appreciate any help \ud83d\ude42&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-368725","topic","type-topic","status-closed","hentry","topic-tag-material-nonlinearity-1","topic-tag-material-properties","topic-tag-nonlinear-material","topic-tag-shape-memory-alloy"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["102866","88"],"_bbp_author_ip":["23.216.133.155"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["385"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["368725"],"_bbp_forum_id":["27791"],"_bbp_engagement":["88","102866"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["369366"],"_bbp_last_active_id":["369366"],"_bbp_last_active_time":["2024-05-31 10:47:04"]},"test":"st157253stud-uni-stuttgart-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/368725","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\/368725\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=368725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}