


{"id":39645,"date":"2019-12-16T15:53:47","date_gmt":"2019-12-16T15:53:47","guid":{"rendered":"\/forum\/forums\/topic\/how-to-solve-a-model-with-high-gap-penetration\/"},"modified":"2019-12-16T15:53:47","modified_gmt":"2019-12-16T15:53:47","slug":"how-to-solve-a-model-with-high-gap-penetration","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-solve-a-model-with-high-gap-penetration\/","title":{"rendered":"How to solve a Model with high Gap\/Penetration ?"},"content":{"rendered":"<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\">Hello everybody<br \/>I am a beginner in Ansys simulation and I need your help to solve a model with high penetration.<br \/>As can be seen below, I have successfully simulated the first model with low penetration \/ gap. The&nbsp;mesh was optimized, a non-linear contact was defined (frictionless).<\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp; <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/7afaf6f4-e661-41be-adbc-ab2500efb47a_sp-analsyis-setting.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span> <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/181ad812-fe02-4122-9185-ab2500efc883_sp-fixed-supportd.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span> <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/40a88d7f-9b53-41b1-8cf8-ab2500efef4e_sp-mesh.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span> <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/8349544d-6727-4272-84ab-ab2500effcf5_sp-results.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span> &nbsp; <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><br \/><\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><br \/>Now I want to simulate anothermodel with&nbsp;higher gap , under the same conditions as before.<\/span> <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/4b6fe75e-ac10-4af0-966b-ab2500f3de18_bp-3d-view.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span> &nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><br \/><strong>* First increased the number of substeps but that didn&#8217;t work<\/strong><\/span><\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><strong><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/f0954a4d-f05b-4234-a7ec-ab2500f64d44_analysis-setting.jpg?width=690&amp;upscale=false\" alt=\"\"><\/strong><\/span> <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><strong><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/762abf4b-e5b5-49a3-8b14-ab2500f659eb_bp-2-result.jpg?width=690&amp;upscale=false\" alt=\"\"><\/strong><\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><br \/><strong>* Then I reduced the&nbsp;mesh size, but that didn&#8217;t work.<\/strong><\/span><\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/854a3b2e-0ede-484a-83f7-ab2500f3aca6_bp-mesh.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span> &nbsp; <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a337db74-c5bc-4309-a964-aaf700c910d1\/28bda7d3-9196-4743-b7a1-ab2500f3c9ba_bp-result.jpg?width=690&amp;upscale=false\" alt=\"\"><\/span><\/span> &nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><br \/><strong>* Then I used a force to reduce the Initial gap size before contact was made, but that didn&#8217;t work.<\/strong><\/span> &nbsp;<\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><br \/>*<strong> Then I used displacement to reduce the gap size, but that didn&#8217;t work either<\/strong>.<\/span> &nbsp; &nbsp;<\/p>\n<p><\/p>\n<p><span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\">Please Note that I can&#8217;t change any Stifness option to solve the convergence problem, because the result has to be symmetrical.<\/span> <span class=\"tlid-translation translation\" lang=\"en\" tabindex=\"-1\"><\/p>\n<p>I know I&#8217;m missing something, but I don&#8217;t know exactly what.<br \/>I would be happy to help you solve this problem and have a happy Christmas.<\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-39645","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["11824"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["3219"],"_bbp_subscription":["244423"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["39645"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","170051","171219"],"_bbp_voice_count":["3"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["100963"],"_bbp_last_active_id":["100963"],"_bbp_last_active_time":["2019-12-16 19:02:20"]},"test":"doug"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/39645","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\/39645\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=39645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}