{"id":356431,"date":"2024-03-11T15:56:35","date_gmt":"2024-03-11T15:56:35","guid":{"rendered":"\/forum\/forums\/topic\/sph-brittle-modeling-with-umat\/"},"modified":"2024-03-11T15:56:35","modified_gmt":"2024-03-11T15:56:35","slug":"sph-brittle-modeling-with-umat","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/sph-brittle-modeling-with-umat\/","title":{"rendered":"SPH brittle modeling with UMAT"},"content":{"rendered":"<p>Greetings, dear colleagues. I want to perform the modeling of complex brittle failure of material with spalling. Could you please clarify the following points:<\/p>\n<p>1) I think about using the SPH method for this purpose but I heard that it is unstable for brittle crushing simulations. Is it true?<\/p>\n<p>2) Can I use my own material model (UMAT) with failure criterion for SPH simulations?<\/p>\n<p>3) Is it possible to define particle-to-particle contact between failed particles? I want to implement the case where crushed parts of model interact with each other after crushing.<\/p>\n<p>&nbsp;<\/p>\n<p>Thank you in advance.<\/p>\n","protected":false},"template":"","class_list":["post-356431","topic","type-topic","status-closed","hentry","topic-tag-ansys-ls-dyna-1","topic-tag-sph","topic-tag-UMAT-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["283739","88","523"],"_bbp_author_ip":["96.7.218.223"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["512"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["356431"],"_bbp_forum_id":["27814"],"_bbp_engagement":["88","523","283739"],"_bbp_voice_count":["3"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["358915"],"_bbp_last_active_id":["358915"],"_bbp_last_active_time":["2024-03-26 04:20:34"]},"test":"dadidal96gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/356431","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\/356431\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=356431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}