{"id":352889,"date":"2024-02-21T16:54:47","date_gmt":"2024-02-21T16:54:47","guid":{"rendered":"\/forum\/forums\/topic\/bolt-pretension-giving-unusual-results\/"},"modified":"2024-02-21T16:54:47","modified_gmt":"2024-02-21T16:54:47","slug":"bolt-pretension-giving-unusual-results","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/bolt-pretension-giving-unusual-results\/","title":{"rendered":"Bolt pretension giving unusual results"},"content":{"rendered":"<p>I am attaching images of Bolt pretension used in a simple geometry.<\/p>\n<p>Bolt, Nut, two plates<\/p>\n<p>The dimensions are random.<\/p>\n<p>Contacts: Projected bolt head on upper plate, nut on bolt shank, nut on lower plate.<\/p>\n<p>Bolt head to upper plate &#8211; frictional<\/p>\n<p>nut to bolt shank &#8211; bonded<\/p>\n<p>nut to lower plate &#8211; frictional<\/p>\n<p>between plates-frictional<\/p>\n<p>bolt shank to first plate clearance hole &#8211; frictionless; bolt shank to second plate clearance hole &#8211; frictionless<\/p>\n<p>gave fixed support at side surface of one plate, it showed &#8216;Magnitude exceed&#8217; error. Tried with solver pivot switching to OFF, weak springs ON, Large deflection ON, increased substeps but still it wasnt converging.<\/p>\n<p>So, gave fixed support to second plate&#8217;s side surface also. It converged but the stress and deformation is unusually high.<\/p>\n<p>Can anyone guide where I am making mistake?<\/p>\n<p>Thanks in advance<img decoding=\"async\" title=\"Geometry\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/21-02-2024-1708534394-1.JPG\" alt=\"\"><\/p>\n<p><img decoding=\"async\" title=\"Mesh\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/21-02-2024-1708534413-2.JPG\" alt=\"\"><\/p>\n<p><img decoding=\"async\" title=\"Stress\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/21-02-2024-1708534432-3.JPG\" alt=\"\"><\/p>\n<p><img decoding=\"async\" title=\"Deformation\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/21-02-2024-1708534460-4.JPG\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-352889","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["170811","200","3937"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["393"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["352889"],"_bbp_forum_id":["27791"],"_bbp_engagement":["200","3937","170811"],"_bbp_voice_count":["3"],"_bbp_reply_count":["21"],"_bbp_last_reply_id":["358198"],"_bbp_last_active_id":["358198"],"_bbp_last_active_time":["2024-03-20 18:05:17"]},"test":"deepesh"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/352889","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\/352889\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=352889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}