{"id":362422,"date":"2024-04-16T09:21:31","date_gmt":"2024-04-16T09:21:31","guid":{"rendered":"\/forum\/forums\/reply\/362422\/"},"modified":"2024-04-16T09:21:31","modified_gmt":"2024-04-16T09:21:31","slug":"362422","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362422\/","title":{"rendered":"Reply To: Force Convergence Issue in Solder Joint Reliability Simulations"},"content":{"rendered":"<p>&lt;p&gt;If you have two planes of symmetry, XZ and YZ you can pick <strong>any vertex<\/strong> in the model and apply a Displacement (not a Fixed Support) of Z = 0 leaving the X and Y Free which will constrain the model and allow thermal stress to be correctly calculated.&nbsp; You will get the same stress no matter which vertex you choose.&nbsp; Only the Deformation plot will be different since the Z value will be zero at the vertex you chose.&lt;\/p&gt;&lt;p&gt;If you really want the Deformation plot to show the zero Z value at some point in space between the two PCB packages, you can insert a Remote Displacement, type = Deformable and choose an edge on each package. Edit the global coordinates of the Remote Displacement to be on the Z axis.&lt;\/p&gt;&lt;p&gt;Please reply with an image of the geometry.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-362422","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 you have two planes of symmetry, XZ and YZ you can pick any vertex in the model and apply a Displacement (not a Fixed Support) of Z = 0 leaving the X and Y Free which will constrain the model and allow thermal stress to be correctly calculated. You will get the same stress\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362422\/\" \/>\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: Force Convergence Issue in Solder Joint Reliability Simulations | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"If you have two planes of symmetry, XZ and YZ you can pick any vertex in the model and apply a Displacement (not a Fixed Support) of Z = 0 leaving the X and Y Free which will constrain the model and allow thermal stress to be correctly calculated. You will get the same stress\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362422\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-04-16T09:21:31+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-04-16T09:21:31+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Force Convergence Issue in Solder Joint Reliability Simulations | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"If you have two planes of symmetry, XZ and YZ you can pick any vertex in the model and apply a Displacement (not a Fixed Support) of Z = 0 leaving the X and Y Free which will constrain the model and allow thermal stress to be correctly calculated. 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