{"id":169331,"date":"2022-05-11T09:27:24","date_gmt":"2022-05-11T09:27:24","guid":{"rendered":"\/forum\/forums\/topic\/can-someone-explain-why-using-bonded-contacts-between-bodies-is-giving-different-results\/"},"modified":"2022-05-12T10:15:35","modified_gmt":"2022-05-12T10:15:35","slug":"can-someone-explain-why-using-bonded-contacts-between-bodies-is-giving-different-results","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/can-someone-explain-why-using-bonded-contacts-between-bodies-is-giving-different-results\/","title":{"rendered":"Can someone explain why using bonded contacts between bodies is giving different results ?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi all,<\/p>\n<p>Let me explain my question better. I have a turbine blade with a thin thermal coating on its surface. I have run some simulations using two different methods which give very different results. The basic load conditions are body temperatures for the blade and coating imported from CFX.<\/p>\n<p>The fist method is modelling the coating using a thin layer in design modeller, and then forming a new part with the blade and coating together, which allows the mesh of each component to connect properly. (i believe this works the same as using shared topology for individual components)<\/p>\n<p>The second method is by only modelling the blade, and then using the mesh pull (extrude) option to model the coating in Mechanical. I then used bonded contacts between the blade and coating.<\/p>\n<p>Using the second method produced much lower stress, but takes much longer to solve. So my question is what is the difference between these two methods in terms of how stress is generally affected.<\/p>\n<p>Thanks !<\/p>\n","protected":false},"template":"","class_list":["post-169331","topic","type-topic","status-closed","hentry","topic-tag-bonded-contact","topic-tag-static-structural","topic-tag-von-mises-stress"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["2396"],"_bbp_likes_count":["0"],"_bbp_subscription":["250484"],"_bbpmt_movedon":["2022-08-26 07:33:36"],"_bbpmt_movedfrom":["27820"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["169331"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","250484"],"_bbp_voice_count":["2"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["214375"],"_bbp_last_active_id":["214375"],"_bbp_last_active_time":["2022-05-12 10:15:35"]},"test":"joshua-pretorius123gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/169331","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\/169331\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=169331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}