{"id":389822,"date":"2024-10-15T14:36:57","date_gmt":"2024-10-15T14:36:57","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/389822\/"},"modified":"2024-10-15T14:36:57","modified_gmt":"2024-10-15T14:36:57","slug":"389822","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/389822\/","title":{"rendered":"Reply To: How to apply a stress as an initial load state ?"},"content":{"rendered":"<p>&lt;p&gt;If I&#8217;m sure that the <em>inistate, write<\/em> command writes the stress of the 1st simulation in the last step, then yes, it&#8217;s a convergence problem because the <em>inistate, read<\/em> command applies stress that are too strong on the first substep of the 2nd simulation.&lt;\/p&gt;&lt;p&gt;I tried your method: in the 2nd simulation, I applied a pre-stress as loaded with <em>inistate, read<\/em> and then locked all nodes in displacement in the first step. In the 2nd step, I used the command <em>DDELE,all,all,,,FORCE<\/em> to unlock the nodes, then <em>esel,s,,,locked_nodes d,all,all,0 allsel<\/em> to relock the fixed nodes from the 1st simulation. The result converged, but the displacement result was not the same between the 1st and 2nd simulations in the last iterations.&nbsp;&lt;\/p&gt;&lt;p&gt;For the 1st simulation, I have a maximum stress of 0.001464Pa, whereas for the second I&#8217;m at 0.25e-3Pa, which is much smaller.&lt;\/p&gt;&lt;p&gt;Any help would be appreciated to get the same results between the 2 simulations. Thanks.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-389822","reply","type-reply","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=\"If I&#039;m sure that the inistate, write command writes the stress of the 1st simulation in the last step, then yes, it&#039;s a convergence problem because the inistate, read command applies stress that are too strong on the first substep of the 2nd simulation.I tried your method: in the 2nd simulation, I applied a pre-stress\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/389822\/\" \/>\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=\"Reply To: How to apply a stress as an initial load state ? 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