{"id":275654,"date":"2023-03-21T03:48:05","date_gmt":"2023-03-21T03:48:05","guid":{"rendered":"\/forum\/forums\/topic\/a-question-about-the-force-and-moment-calculation-in-rocky\/"},"modified":"2023-03-21T03:48:05","modified_gmt":"2023-03-21T03:48:05","slug":"a-question-about-the-force-and-moment-calculation-in-rocky","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/a-question-about-the-force-and-moment-calculation-in-rocky\/","title":{"rendered":"A question about the force and moment calculation in Rocky."},"content":{"rendered":"<p>I have a question about Rocky and would like to ask the technical team: In Rocky&#8217;s &#8220;DEM Technical Manual&#8221;, it is stated that the force of shell particles is calculated at the joint connecting two shell units, as shown in the diagram. The green part represents the shell particles in Rocky, and the yellow part represents the sphere particles. Sphere particles Ball-1 and Ball-2 are in contact with Shell-0 and Shell-3 at points P1 and P2, respectively. I would like to ask about the forces and moments at these 7 joints: Joint-01, Joint-02, Joint-03, Joint-34, Joint-35, Joint-56, and Joint-57. The &#8220;DEM Technical Manual&#8221; and other Rocky manuals do not discuss the transmission of forces within the same shell unit and between different shell units.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/03\/21-03-2023-1679370478-mceclip0.png\"><\/p>\n","protected":false},"template":"","class_list":["post-275654","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have a question about Rocky and would like to ask the technical team: In Rocky&#039;s &quot;DEM Technical Manual&quot;, it is stated that the force of shell particles is calculated at the joint connecting two shell units, as shown in the diagram. The green part represents the shell particles in Rocky, and the yellow part\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/a-question-about-the-force-and-moment-calculation-in-rocky\/\" \/>\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=\"A question about the force and moment calculation in Rocky. | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I have a question about Rocky and would like to ask the technical team: In Rocky&#039;s &quot;DEM Technical Manual&quot;, it is stated that the force of shell particles is calculated at the joint connecting two shell units, as shown in the diagram. 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