{"id":454330,"date":"2026-03-12T23:42:54","date_gmt":"2026-03-12T23:42:54","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/contact-doesnt-work\/"},"modified":"2026-03-13T17:12:17","modified_gmt":"2026-03-13T17:12:17","slug":"contact-doesnt-work","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/contact-doesnt-work\/","title":{"rendered":"Contact doesn&#8217;t work"},"content":{"rendered":"<p>&lt;p&gt;Hi Everyone&lt;\/p&gt;&lt;p&gt;I created a dome composed of many beams as shown in the figure 1 and 2, and made a cylinder imapct it. I applied <strong>*CONTACT_AUTOMATIC_BEAMS_TO_SURFACE_ID<\/strong> between the cylinder and each beam. As for beams, there is a little difference in height between 2 beams. I didn&#8217;t add any contacts. I added <strong>*CONSTRAINED_GENERALIZED_WELD_SPOT<\/strong> or <strong>*CONSTRAINED_SPOTWELD <\/strong>between the nodes of 2 beams closest to the intersection. After I ran the simulation, the cylinder went through the dome rather than impacting it, as shown in figure 3. The beams appeared to have a little oscillation. It seems that there is still some interaction force between the beam and the cylinder. But the cylinder just directly went through the beams. Does anybody know the reason and how to fix it?&nbsp;&lt;\/p&gt;&lt;p&gt;I attached my .k file : https:\/\/tuprd-my.sharepoint.com\/:u:\/g\/personal\/tut06916_temple_edu\/IQAtEDBPZhKLRYw4Kr0EEa_AAeYXal-n6FkEF1ROSpG_67k?e=86nLOW&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/03\/12-03-2026-1773357869-1.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/03\/12-03-2026-1773357880-2.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/03\/12-03-2026-1773357892-4.png\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-454330","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["454330"],"_bbp_subscription":["608524","58821","199","480261"],"_bbp_author_ip":["71.162.215.38"],"_bbp_last_reply_id":["454567"],"_bbp_last_active_id":["454567"],"_bbp_last_active_time":["2026-03-16 07:39:04"],"_bbp_reply_count":["5"],"_bbp_reply_count_hidden":["1"],"_bbp_voice_count":["3"],"_btv_view_count":["179"],"_bbp_topic_status":["unanswered"],"_bbp_engagement":["58821","608524","480261"]},"test":"tut06916temple-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/454330","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\/454330\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=454330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}