{"id":426132,"date":"2025-03-19T09:34:21","date_gmt":"2025-03-19T09:34:21","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/2-way-fem-dem-coupling-ansys-mechanical-and-rocky-high-plastic-deformation\/"},"modified":"2025-03-19T09:51:37","modified_gmt":"2025-03-19T09:51:37","slug":"2-way-fem-dem-coupling-ansys-mechanical-and-rocky-high-plastic-deformation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/2-way-fem-dem-coupling-ansys-mechanical-and-rocky-high-plastic-deformation\/","title":{"rendered":"2-way FEM-DEM coupling &#8211; Ansys Mechanical and Rocky &#8211; High plastic deformation"},"content":{"rendered":"<p>&lt;p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;I have to do a ring test compression simulation with granulates on it. I want to do a 2-way FEM-DEM coupling using Ansys Mechanical for the ring deformation part and Rocky for the granulates. It should be a 2-way coupling, as the inner pressure produce in the granulate is affecting the deformation of the ring, and the ring being compressed as well is affecting the granulates. The ring is going through a big plastic deformation.&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;I was using version 23.2 and I wanted to use the System Coupling GUI. After seeing the tutorial &ldquo;Ansys Rocky: 2-Way Structural Coupling with Mechanical&rdquo;, I realized I couldn&rsquo;t save the .scp file in rocky so I update it to the last version. Reading the manual, I have seen this:&lt;br&gt;<strong>Limitations:<\/strong>&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;The coupled walls cannot have:&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;&bull; Motion Frame&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;&bull; Translation&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;&bull; Rotation&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;&bull; Mass tab&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;&bull; Wear tab&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;&bull; Replication tab&lt;br style=&#8221;mso-special-character: line-break;&#8221;&gt;&lt;!&#8211; [if !supportLineBreakNewLine]&#8211;&gt;&lt;br style=&#8221;mso-special-character: line-break;&#8221;&gt;&lt;!&#8211;[endif]&#8211;&gt;&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt;Seeing the potential applications in the mentioned video, most of them are restricted to elastic deformation. My question is, is the coupling between Rocky and Ansys Mechanical through the System Coupling possible when large plastic deformations are involved?&lt;\/span&gt;&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221; style=&#8221;mso-ansi-language: EN-US;&#8221;&gt; Thanks in advance!&lt;\/span&gt;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-426132","topic","type-topic","status-publish","hentry","topic-tag-mechanicalworkbench-1","topic-tag-ansys-mechanical","topic-tag-coupling","topic-tag-dem","topic-tag-fem","topic-tag-plastic","topic-tag-rocky-dem-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27796"],"_bbp_topic_id":["426132"],"_bbp_subscription":["432687","66199","533229"],"_bbp_author_ip":["129.217.131.39"],"_bbp_last_reply_id":["430910"],"_bbp_last_active_id":["430910"],"_bbp_last_active_time":["2025-05-06 15:19:57"],"_bbp_reply_count":["5"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["3"],"_bbp_engagement":["432687","66199","533229"],"_btv_view_count":["360"],"_bbp_topic_status":["unanswered"],"_edit_last":["432687"],"_bbp_revision_log":["a:1:{i:426134;a:2:{s:6:\"author\";i:432687;s:6:\"reason\";s:0:\"\";}}"],"_bbp_notification_enabled":["432687"]},"test":"fatima-ferreiratu-dortmund-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/426132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/426132\/revisions"}],"predecessor-version":[{"id":426134,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/426132\/revisions\/426134"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=426132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}