{"id":395247,"date":"2024-11-25T22:29:38","date_gmt":"2024-11-25T22:29:38","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/bolt-pretension-setup\/"},"modified":"2024-11-26T00:07:22","modified_gmt":"2024-11-26T00:07:22","slug":"bolt-pretension-setup","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/bolt-pretension-setup\/","title":{"rendered":"Bolt pretension setup validation"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;&lt;p&gt;Hi all, I&#8217;m new to Ansys and working on a model involving an unconventional bolting setup:&lt;\/p&gt;&lt;p style=&#8221;text-align: center;&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/25-11-2024-1732573456-bolt geometry example.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p style=&#8221;text-align: left;&#8221;&gt;Right now, I have a frictional contact between the bolt head and gusset, bonded contact between the bolt shaft and nut, and frictional contact between the nut and the beam. All frictional contacts have a coefficient of 0.2&lt;\/p&gt;&lt;p style=&#8221;text-align: left;&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/25-11-2024-1732573674-bolt geometry example 2.png\" alt=\"\" \/>I also have a frictionless contact between the bolt shaft and these highlighted walls on the gusset and beam below, because those are basically the &#8220;bolt hole&#8221; in this case. I&#8217;m also applying bolt pretension to each bolt of 200N.&lt;\/p&gt;&lt;p style=&#8221;text-align: left;&#8221;&gt;Would you recommend any changes to this setup, or should this work? I&#8217;m having convergence issues with my model and was wondering whether part of this bolt setup could be the issue.&lt;\/p&gt;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-395247","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi all, I&#039;m new to Ansys and working on a model involving an unconventional bolting setup:Right now, I have a frictional contact between the bolt head and gusset, bonded contact between the bolt shaft and nut, and frictional contact between the nut and the beam. 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