{"id":362814,"date":"2024-04-17T23:25:21","date_gmt":"2024-04-17T23:25:21","guid":{"rendered":"\/forum\/forums\/reply\/362814\/"},"modified":"2024-04-17T23:25:21","modified_gmt":"2024-04-17T23:25:21","slug":"362814","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362814\/","title":{"rendered":"Reply To: Multiple INTERFACE_SSI layer for implementing DRM"},"content":{"rendered":"<p>&lt;p&gt;The surface for INTERFACE_SSI_STATIC should match that of INTERFACE_SSI. If you use OFFSET in one, use it in the other too.&lt;\/p&gt;&lt;p&gt;Also, there is no need to specify a single-element DRM layer &#8211; the effective seismic input in LS-DYNA follows Bielak&#8217;s earlier papers, not the later ones. The only requirement is that the PML should be at least two elements away from the INTERFACE_SSI&lt;\/p&gt;&lt;p&gt;Possibly, even in the dynamic case, the meshes on either side are not separated (you should see duplicate nodes on the interface when you highlight it in LSPP)&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-362814","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=\"The surface for INTERFACE_SSI_STATIC should match that of INTERFACE_SSI. If you use OFFSET in one, use it in the other too.Also, there is no need to specify a single-element DRM layer - the effective seismic input in LS-DYNA follows Bielak&#039;s earlier papers, not the later ones. The only requirement is that the PML should be\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/362814\/\" \/>\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: Multiple INTERFACE_SSI layer for implementing DRM | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"The surface for INTERFACE_SSI_STATIC should match that of INTERFACE_SSI. If you use OFFSET in one, use it in the other too.Also, there is no need to specify a single-element DRM layer - the effective seismic input in LS-DYNA follows Bielak&#039;s earlier papers, not the later ones. 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