{"id":157622,"date":"2020-08-05T01:08:37","date_gmt":"2020-08-05T01:08:37","guid":{"rendered":"\/forum\/forums\/topic\/how-do-the-number-of-substeps-affect-sif-results-using-smart-crack-growth-2\/"},"modified":"2020-08-20T16:36:16","modified_gmt":"2020-08-20T16:36:16","slug":"how-do-the-number-of-substeps-affect-sif-results-using-smart-crack-growth-2","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-do-the-number-of-substeps-affect-sif-results-using-smart-crack-growth-2\/","title":{"rendered":"How do the number of substeps affect SIF results using SMART crack growth?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi, <\/p>\n<p>I&#039;m running a simple SMART simulation with an edge crack and noticed that the number of substeps used changes the results I get for the SIF. Using a small number of substeps decreased the average SIF along the contour and using a large number increased the average SIF. I thought that the number of substeps had to do with the convergence of the solution so I&#039;m confused as to why its affecting the SIF so much. A follow up question is how I can then choose the number of substeps needed to get accurate results. I would appreciate any suggestions or advice!<\/p>\n<p>FYI, my specimen is 20mmx20mm with a 1 mm thickness and I am applying a stress of 65 MPa to the top surface. There is a fixed support on the bottom surface. My initial, minimum, and maximum number of substeps is 60,40,100.<\/p>\n","protected":false},"template":"","class_list":["post-157622","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["165"],"_bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["157622"],"_bbp_forum_id":["27791"],"_bbp_engagement":["157520","160430"],"_bbp_voice_count":["2"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["175885"],"_bbp_last_active_id":["175885"],"_bbp_last_active_time":["2020-08-20 16:36:16"]},"test":"afrah"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/157622","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\/157622\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=157622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}