{"id":164379,"date":"2021-11-29T12:51:39","date_gmt":"2021-11-29T12:51:39","guid":{"rendered":"\/forum\/forums\/topic\/introducing-residual-stresses-apdl\/"},"modified":"2021-12-02T00:02:03","modified_gmt":"2021-12-02T00:02:03","slug":"introducing-residual-stresses-apdl","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/introducing-residual-stresses-apdl\/","title":{"rendered":"Introducing residual stresses APDL"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Dear all,<\/p>\n<p>I am modelling a steel tube for axial compression test. I would like to introduce residual stresses that the unloaded tubes have.<\/p>\n<p>One way to do it is with the INISTATE command, in which you apply inistal stress or strain to elements in their integration points. My problem with this command is that when I solve just with the inital stresses, these redistribute and concentrate at the boundary conditions. Thus, this is not an accurate state of real residual stressed tubes. How can I avoid this?<\/p>\n<p>Another way is using an ISFILE. But I dont know how to operate with this command, because ISFILE,READ reads an initial stress state from a file into ANSYS. This command can be used in recent APDL versions, but no longer appears in the command help. How do I generate this file?<\/p>\n<p>Which option should I use?<\/p>\n<p><\/p>\n<\/p>\n<p>Thanks<\/p>\n","protected":false},"template":"","class_list":["post-164379","topic","type-topic","status-closed","hentry","topic-tag-inistate","topic-tag-inistate-command-1","topic-tag-isfile-1","topic-tag-residual-stress","topic-tag-residualstresses-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["2026"],"_bbp_likes_count":["0"],"_bbp_subscription":["237675"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["164379"],"_bbp_forum_id":["27791"],"_bbp_engagement":["50680","237675"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["198970"],"_bbp_last_active_id":["198970"],"_bbp_last_active_time":["2021-12-02 00:02:03"]},"test":"manuel-uruenaalumnos-upm-es"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/164379","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\/164379\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=164379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}