{"id":362547,"date":"2024-04-17T08:10:45","date_gmt":"2024-04-17T08:10:45","guid":{"rendered":"\/forum\/?post_type=topic&#038;p=362547"},"modified":"2024-04-22T14:44:09","modified_gmt":"2024-04-22T14:44:09","slug":"multiple-interface_ssi-layer-for-implementing-drm","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/multiple-interface_ssi-layer-for-implementing-drm\/","title":{"rendered":"Multiple INTERFACE_SSI layer for implementing DRM"},"content":{"rendered":"<p>Hello everyone!<\/p>\n<p>I am trying to understand the response of a structure on a soil domain by SSI analysis and my model needs to utilize the DRM technique.&nbsp;LS-Dyna just warns by printing some messages similar to the one provided below (from d3hsp):<\/p>\n<pre>*** Warning 50134 (MPP+134)<br>&nbsp; &nbsp; &nbsp;Tracked node also belongs to reference segments<br>&nbsp; &nbsp; &nbsp;connectivity. This should not cause numerical problems.<br>&nbsp; &nbsp; &nbsp; &nbsp;tied interface # &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1<br>&nbsp; &nbsp; &nbsp; &nbsp;tracked node # &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1<br>&nbsp; &nbsp; &nbsp; &nbsp;segment # &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 179<br>&nbsp; &nbsp; &nbsp; &nbsp;segment nodes:<br>&nbsp; &nbsp; &nbsp; 22 463 442 1<br>&nbsp;Summary of warning messages for interface # = 1<br>&nbsp; &nbsp;number of warning messages &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 4418<\/pre>\n<p>In that case the solver reports the following errors in the d3hsp01:<\/p>\n<pre>At line 253932730:<br>&nbsp;*** Error 30264 (INI+264)<br>&nbsp; &nbsp; &nbsp;SSI interface ID: 1 not found in restart file<br><br>At line 253932733:<br>&nbsp;*** Error 30271 (INI+271)<br>&nbsp; &nbsp; &nbsp;# of nodes 4418 in SSI contact interface id 1<br>&nbsp; &nbsp; &nbsp;do not match stored # of nodes: 890217136<\/pre>\n<p>I want to understand how to troubleshoot these errors and whether they are related to the manner in which the *INTERFACE_SSI was defined. I know about the implementation and theory of effective seismic input that LS-Dyna employs in the background according to Bielak&#8217;s 1984 article.<\/p>\n<p>Thanks in advance for your valuable insights and time.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&#8211; Tonmoy.<\/p>\n","protected":false},"template":"","class_list":["post-362547","topic","type-topic","status-closed","hentry","topic-tag-explicit-dynamics","topic-tag-ls-dyna","topic-tag-pml-boundary-1","topic-tag-seismic-loading","topic-tag-soil-structure-interation-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello everyone!I am trying to understand the response of a structure on a soil domain by SSI analysis and my model needs to utilize the DRM technique. LS-Dyna just warns by printing some messages similar to the one provided below (from d3hsp):*** Warning 50134 (MPP+134) Tracked node also belongs to reference segments connectivity. 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