Hi everyone,<\/p>\n
<\/p>\n
I am trying for over 6 months to model the post-cracking behavior of an ultra high performance concrete subjected to bending. After trying various suggestions that I found here in this community (solid65, microplane with elastic damage, menetrey-willam) I ended up using Drucker-Prager Model for Concrete as I can input stress-strain data obtained from experiments to describe the constitutive law of strain hardening ultra high performance concrete. From a quick look on the solver output I think the problem lies on the material ( “The material solution failed for element 21503 with material 1″<\/em>). However, when I plot the Newton-Raphson Residual Forces it seems that the contacts between the prism and the supports or the supports and the steel bases are problematic. I changed set the stiffness to be updated after each iteration, but still nothing works. At the end of the day I want to be able to obtain the plateau and the descending branch on the Force-Midspan Displacement curve. Could someone please have a look on the attached model and help me? My deadline is approaching and I am in desperate need of help!!! <\/p>\n <\/p>\n <\/p>\n <\/p>\n Regards,<\/p>\n <\/p>\n Zoi<\/p>\n","protected":false},"template":"","class_list":["post-38591","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["10769"],"_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"],"_btv_view_count":["1113"],"_bbp_subscription":["240891"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["38591"],"_bbp_forum_id":["27791"],"_bbp_engagement":["88","99","163239","165653","166218"],"_bbp_voice_count":["5"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["143482"],"_bbp_last_active_id":["143482"],"_bbp_last_active_time":["2021-02-23 19:26:23"]},"test":"zoiralli"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/38591","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\/38591\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=38591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}