{"id":315330,"date":"2023-11-07T23:44:22","date_gmt":"2023-11-07T23:44:22","guid":{"rendered":"\/forum\/forums\/topic\/implicit-simulation-after-dynamic-relaxation\/"},"modified":"2023-11-07T23:44:22","modified_gmt":"2023-11-07T23:44:22","slug":"implicit-simulation-after-dynamic-relaxation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/implicit-simulation-after-dynamic-relaxation\/","title":{"rendered":"Implicit Simulation after Dynamic Relaxation?"},"content":{"rendered":"<p>I have an assembly that has a number of bolts in it that pretension to their preloaded state via an initial Dynamic Relaxtion phase.<\/p>\n<p>I can then solve the subsequent analysis (quasi-static) explicitly with no issue.<\/p>\n<p>I am interested however in performing this analysis with the implicit solver as a true static analysis however after the DR phase ends and imlicit starts (after i&#8217;ve modified deck to start implicitly) the job just errors out.<\/p>\n<p>In general then, should it be possible to run a static implicit job from a preloaded state from DR phase?<\/p>\n<p>I know implicit will not run with any free body rigid body modes but wouldn&#8217;t my bolts be sufficiently restrained and have no rigid body modes?<\/p>\n<p>How do i deal with true fasteners for implicit jobs, or is this not possible and i have to linearize with CNRB&#8217;s etc?<\/p>\n<p>Thanks.<\/p>\n","protected":false},"template":"","class_list":["post-315330","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have an assembly that has a number of bolts in it that pretension to their preloaded state via an initial Dynamic Relaxtion phase.I can then solve the subsequent analysis (quasi-static) explicitly with no issue.I am interested however in performing this analysis with the implicit solver as a true static analysis however after the DR\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/implicit-simulation-after-dynamic-relaxation\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Implicit Simulation after Dynamic Relaxation? 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