{"id":463406,"date":"2026-09-10T10:54:05","date_gmt":"2026-09-10T10:54:05","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dem-particles-penetrating-solid-amp-beam-elements-in-ls-dyna-wire-mesh-simulation\/"},"modified":"2026-09-10T10:54:05","modified_gmt":"2026-09-10T10:54:05","slug":"dem-particles-penetrating-solid-amp-beam-elements-in-ls-dyna-wire-mesh-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dem-particles-penetrating-solid-amp-beam-elements-in-ls-dyna-wire-mesh-simulation\/","title":{"rendered":"DEM particles penetrating solid &amp; beam elements in LS-DYNA wire mesh simulation"},"content":{"rendered":"<p data-path-to-node=\"0,1\">I am simulating the impact of discrete element (DEM) particles on a wire mesh structure in LS-DYNA. The particles are generated using <code data-path-to-node=\"0,1\" data-index-in-node=\"134\">*DEFINE_DE_INJECTION<\/code>. The structure consists of a frame modeled with solid elements (<code data-path-to-node=\"0,1\" data-index-in-node=\"219\">*MAT_ELASTIC<\/code>) and wires modeled with beam elements (<code data-path-to-node=\"0,1\" data-index-in-node=\"271\">*MAT_PLASTIC_KINEMATIC<\/code>). The keyword file was initially generated using ANSYS LS-DYNA (where meshing was also done)&nbsp;and finalized in LS-PrePost.<\/p>\n<p data-path-to-node=\"0,2\">For structural contacts, I defined <code data-path-to-node=\"0,2\" data-index-in-node=\"35\">*CONTACT_AUTOMATIC_GENERAL<\/code> and <code data-path-to-node=\"0,2\" data-index-in-node=\"66\">*CONTACT_AUTOMATIC_NODES_TO_SURFACE<\/code>. For the DEM-to-structure interaction, I implemented <code data-path-to-node=\"0,2\" data-index-in-node=\"155\">*DEFINE_DE_TO_BEAM_COUPLING<\/code> and <code data-path-to-node=\"0,2\" data-index-in-node=\"187\">*DEFINE_DE_TO_SURFACE_COUPLING<\/code>.<\/p>\n<p data-path-to-node=\"0,3\">However, during the simulation, the DEM particles completely penetrate both the wires and the frame as if the structure does not exist. Are there any missing keywords or specific parameter adjustments required to properly enforce the physical interaction between the DEM particles and the structure?<\/p>\n<p data-path-to-node=\"0,3\"><img loading=\"lazy\" decoding=\"async\" style=\"display: block;margin-left: auto;margin-right: auto\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/09\/Screenshot-2026-09-10-160132-1.png\" alt=\"\" width=\"894\" height=\"292\"><\/p>\n","protected":false},"template":"","class_list":["post-463406","topic","type-topic","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=\"I am simulating the impact of discrete element (DEM) particles on a wire mesh structure in LS-DYNA. The particles are generated using *DEFINE_DE_INJECTION. The structure consists of a frame modeled with solid elements (*MAT_ELASTIC) and wires modeled with beam elements (*MAT_PLASTIC_KINEMATIC). The keyword file was initially generated using ANSYS LS-DYNA (where meshing was also done) and\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dem-particles-penetrating-solid-amp-beam-elements-in-ls-dyna-wire-mesh-simulation\/\" \/>\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=\"DEM particles penetrating solid &amp; beam elements in LS-DYNA wire mesh simulation | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I am simulating the impact of discrete element (DEM) particles on a wire mesh structure in LS-DYNA. The particles are generated using *DEFINE_DE_INJECTION. The structure consists of a frame modeled with solid elements (*MAT_ELASTIC) and wires modeled with beam elements (*MAT_PLASTIC_KINEMATIC). The keyword file was initially generated using ANSYS LS-DYNA (where meshing was also done) and\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dem-particles-penetrating-solid-amp-beam-elements-in-ls-dyna-wire-mesh-simulation\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-09-10T10:54:05+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-09-10T10:54:05+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"DEM particles penetrating solid &amp; beam elements in LS-DYNA wire mesh simulation | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I am simulating the impact of discrete element (DEM) particles on a wire mesh structure in LS-DYNA. 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The structure consists of a frame modeled with solid elements (*MAT_ELASTIC) and wires modeled with beam elements (*MAT_PLASTIC_KINEMATIC). The keyword file was initially generated using ANSYS LS-DYNA (where meshing was also done) and"},"aioseo_meta_data":[],"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tDEM particles penetrating solid &amp; beam elements in LS-DYNA wire mesh simulation\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"DEM particles penetrating solid &amp; beam elements in LS-DYNA wire mesh simulation","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dem-particles-penetrating-solid-amp-beam-elements-in-ls-dyna-wire-mesh-simulation\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["463406"],"_bbp_subscription":["639003"],"_bbp_author_ip":[null],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["463406"],"_bbp_last_active_time":["2026-09-10 12:15:16"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_engagement":["1"],"_bbp_likes_count":["0"],"_btv_view_count":["13"],"application":[null],"emailnotification":[null],"_bbp_topic_status":["unanswered"]},"test":"kavya_p230097cenitc-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/463406","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":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/463406\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=463406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}