{"id":311422,"date":"2023-10-13T13:21:21","date_gmt":"2023-10-13T13:21:21","guid":{"rendered":"\/forum\/forums\/topic\/arbitrary-crack-as-a-weld-root-crack\/"},"modified":"2023-10-13T13:21:21","modified_gmt":"2023-10-13T13:21:21","slug":"arbitrary-crack-as-a-weld-root-crack","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/arbitrary-crack-as-a-weld-root-crack\/","title":{"rendered":"arbitrary crack as a weld root crack"},"content":{"rendered":"<p>Hello, I have a question regarding the fracture Mechanics tool of mechanical:<\/p>\n<p>I want to calculate the Stress Intensity Factors for a semielliptical Crack starting at the weld root. (Crack starts at weld root, goes to x-direction with 45 &deg; in the next picture)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/13-10-2023-1697202929-mceclip2.png\" width=\"327\" height=\"196\"><\/p>\n<p>&nbsp;<\/p>\n<p>Because of geometric boundary conditions, the &#8220;Semi-Elliptical Crack&#8221; can&#8217;t be meshed. So i defined an &#8220;Arbitrary Crack&#8221; with a semi elliptical surface body and put it at the weld root. The brown plate (picture above) is only connected to the fillet weld and not to the plate beneath.<\/p>\n<p>Even though results are calculated, they don&#8217;t seem to be right. Also the crack front seems to be &#8220;buckled&#8221;.&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/13-10-2023-1697203174-mceclip3.png\" width=\"340\" height=\"261\"><\/p>\n<p>Is ist because the Crack starts at an edge ?<\/p>\n<p>&nbsp;<\/p>\n<p>How can you calculate correct SIF in this case ?<\/p>\n","protected":false},"template":"","class_list":["post-311422","topic","type-topic","status-closed","hentry","topic-tag-fracture-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["292035","157520","294980"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1116"],"_bbp_likes_count":["1"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["311422"],"_bbp_forum_id":["27791"],"_bbp_engagement":["157520","292035"],"_bbp_voice_count":["2"],"_bbp_reply_count":["10"],"_bbp_reply_count_hidden":["1"],"_bbp_last_reply_id":["316431"],"_bbp_last_active_id":["316431"],"_bbp_last_active_time":["2023-11-08 20:58:47"]},"test":"benediktthomas-hubertum-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/311422","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\/311422\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=311422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}