Hi all,<\/p>\n
I tried to simulate anisotropic creep behavior using Hill Yield Criterion + Generalized Garofalo. I was able to do the simulation under mechanical (displacement) loading, and the result matched the analytical solution. <\/p>\n
However, when I changed the loading condition to thermal loading only<\/strong> (also applied anisotropic CTE to the model), the model showed error messages: I tried with smaller time steps but it did not solve the problem. Later, I set the temperature in each time step to be 20°C which is identical to the initial temperature. The error messages remained the same.<\/p>\n Does anyone have a similar experience and knows how to solve it? Any help will be greatly appreciated.<\/p>\n Thank you.<\/p>\n","protected":false},"template":"","class_list":["post-305346","topic","type-topic","status-closed","hentry","topic-tag-anisotropic","topic-tag-creep","topic-tag-error","topic-tag-hill-1","topic-tag-Staticstructure-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["17545","88","99"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["627"],"_edit_lock":["1694705213:185478"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["305346"],"_bbp_forum_id":["27791"],"_bbp_engagement":["88","99","17545"],"_bbp_voice_count":["3"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["309312"],"_bbp_last_active_id":["309312"],"_bbp_last_active_time":["2023-09-28 16:20:26"]},"test":"lomssumd-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/305346","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\/305346\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=305346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
many lines of “Creep algorithm did not converge for element number XXX with material number 1 and Creep model number 8.”
and followed by “The unconverged solution (identified as time XXX substep 999999) is output for analysis debug purposes. Results should not be used for any other purpose”.<\/p>\n