{"id":373500,"date":"2024-07-24T22:26:02","date_gmt":"2024-07-24T22:26:02","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-simulation-where-both-impactor-and-target-are-ale-help-request\/"},"modified":"2024-07-24T22:26:02","modified_gmt":"2024-07-24T22:26:02","slug":"ls-dyna-simulation-where-both-impactor-and-target-are-ale-help-request","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-simulation-where-both-impactor-and-target-are-ale-help-request\/","title":{"rendered":"LS DYNA Simulation where both impactor and target are ALE [HELP REQUEST]"},"content":{"rendered":"<p>Hi Forum,<\/p>\n<p>I am trying to run a simulation where I have an aluminum particle impacting an aluminum substrate. I want both as ALE since they experience high distortion in lagrangian as well as premature termination. I am not sure if my current implmentation is correct. When I run the simulation both my particle and substrate dissapear and I get this warning:<\/p>\n<p>*** Warning 40864 (SOL+864)<br \/>&nbsp; &nbsp; &nbsp;Segment based contact stiffness was reduced due to<br \/>&nbsp; &nbsp; &nbsp;an increasing solution time step. The new time step for<br \/>&nbsp; &nbsp; &nbsp;the stiffness calculation is 1.2952E-08<\/p>\n<p>And this error:<\/p>\n<p>&nbsp;*** Error 40509 (SOL+509)<br \/>&nbsp; &nbsp; &nbsp;negative volume in solid element # 193650 cycle 688<\/p>\n<p>&nbsp;*** Error 40509 (SOL+509)<br \/>&nbsp; &nbsp; &nbsp;negative volume in solid element # 193650 cycle 688<\/p>\n<p>Any help on implementing ALE into my model would be much appreciated. Thanks in advance. <strong>I have attached my model for your reference.<\/strong><\/p>\n<p><a style=\"font-size: 18.6667px\" href=\"https:\/\/drive.google.com\/file\/d\/1djv_DMWaJH25qZV2bUkk6zMPQr3sU-Q5\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\">Keyword File<\/a><\/p>\n","protected":false},"template":"","class_list":["post-373500","topic","type-topic","status-closed","hentry","topic-tag-LS-DYNAruntime-1","topic-tag-ansys-ls-dyna-1","topic-tag-ls-dyna"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["338146","21501"],"_bbp_author_ip":["128.100.25.158"]," _bbp_last_reply_id":["0"],"_btv_view_count":["880"]," _bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["373500"],"_bbp_forum_id":["27814"],"_bbp_engagement":["21501","338146"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["374574"],"_bbp_last_active_id":["374574"],"_bbp_last_active_time":["2024-07-31 21:28:20"]},"test":"jashrmie-utoronto-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/373500","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\/373500\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=373500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}