{"id":461165,"date":"2026-07-10T07:32:30","date_gmt":"2026-07-10T07:32:30","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3-point-bend-test-with-a-round-groove-tip-crack\/"},"modified":"2026-07-10T07:32:30","modified_gmt":"2026-07-10T07:32:30","slug":"3-point-bend-test-with-a-round-groove-tip-crack","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3-point-bend-test-with-a-round-groove-tip-crack\/","title":{"rendered":"3 point bend test with a round groove tip &#8211; crack"},"content":{"rendered":"<p>&lt;p&gt;Hello fellow users. I&#8217;m a student learning ansys mechanical. I&#8217;m doing a static 3-point bend test and I was wondering if there is a way to make a crack to form on the tip of the groove, which is round.&lt;\/p&gt;&lt;p&gt;I tried the SMART crack growth with a pre-meshed crack, but wasn&#8217;t able to get a crack to form, even at 5x the calculated force needed at many different mesh sizes.&lt;\/p&gt;&lt;p&gt;I also wanted to insert the semi-elliptical crack, but I always get &#8220;Mesher failed to generate crack meshing.&#8221;&lt;\/p&gt;&lt;p&gt;The material model is defined by Isoentropic Elasticity and Drucker-Prager + Softening with Fracture Energy.&lt;\/p&gt;&lt;p&gt;Any advice to get a crack started and going? <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/07\/10-07-2026-1783667708-mceclip2.png\" \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/07\/10-07-2026-1783667708-mceclip3.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-461165","topic","type-topic","status-publish","hentry","topic-tag-3-point-bending-1","topic-tag-crack-initiation","topic-tag-smart-crack-growth"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27791"],"_bbp_topic_id":["461165"],"_bbp_subscription":["708363","685279","58821"],"_bbp_author_ip":["46.34.246.79"],"_bbp_last_reply_id":["461291"],"_bbp_last_active_id":["461291"],"_bbp_last_active_time":["2026-07-14 07:18:23"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["3"],"_bbp_engagement":["708363","685279","58821"],"_btv_view_count":["31"],"_bbp_topic_status":["unanswered"]},"test":"mihalka1stud-uniza-sk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/461165","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\/461165\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=461165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}