{"id":161527,"date":"2021-08-23T10:31:17","date_gmt":"2021-08-23T10:31:17","guid":{"rendered":"\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/"},"modified":"2021-08-24T16:45:41","modified_gmt":"2021-08-24T16:45:41","slug":"mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/","title":{"rendered":"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform)"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I want to study a compressed beam in Ansys Mechanical APDL. To model the beam I used shell elements and MPC184 Elements (rigid beam), so that the beam extreme sections remain plane. he problem itself doesn&#039;t need any constraint, because it is auto-equilibrated, but to run the analysis on Ansys I need to prevent the rigid body motion (translations and rotations).<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/500\/P7IUL0NWATDD.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/500\/P7IUL0NWATDD.png\" alt=\"3DBeam copia 4.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-161527","topic","type-topic","status-closed","hentry","topic-tag-beam","topic-tag-mpc184-1","topic-tag-shell-elements","topic-tag-stress-result"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi,I want to study a compressed beam in Ansys Mechanical APDL. 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To model the beam I used shell elements and MPC184 Elements (rigid beam), so that the beam extreme sections remain plane. he problem itself doesn&#039;t need any constraint, because it is auto-equilibrated, but to run the analysis on Ansys I need to prevent the\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/forum-uploads\/500\/P7IUL0NWATDD.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/forum-uploads\/500\/P7IUL0NWATDD.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-08-23T10:31:17+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-08-24T16:45:41+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform) | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi,I want to study a compressed beam in Ansys Mechanical APDL. To model the beam I used shell elements and MPC184 Elements (rigid beam), so that the beam extreme sections remain plane. he problem itself doesn&#039;t need any constraint, because it is auto-equilibrated, but to run the analysis on Ansys I need to prevent the\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/forum-uploads\/500\/P7IUL0NWATDD.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/shell-elements\\\/#listItem\",\"name\":\"shell-elements\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/shell-elements\\\/#listItem\",\"position\":3,\"name\":\"shell-elements\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/shell-elements\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\\\/#listItem\",\"name\":\"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform)\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\\\/#listItem\",\"position\":4,\"name\":\"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform)\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/shell-elements\\\/#listItem\",\"name\":\"shell-elements\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\\\/\",\"name\":\"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform) | Ansys Learning Forum\",\"description\":\"Hi,I want to study a compressed beam in Ansys Mechanical APDL. 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To model the beam I used shell elements and MPC184 Elements (rigid beam), so that the beam extreme sections remain plane. he problem itself doesn't need any constraint, because it is auto-equilibrated, but to run the analysis on Ansys I need to prevent the","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/shell-elements\/#listItem","name":"shell-elements"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/shell-elements\/#listItem","position":3,"name":"shell-elements","item":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/shell-elements\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/#listItem","name":"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform)"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/#listItem","position":4,"name":"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform)","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/shell-elements\/#listItem","name":"shell-elements"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mpc184-elements-on-3d-beam-model-problem-stresses-are-not-uniform\/","name":"MPC184 Elements on 3D Beam model (Problem: stresses are not uniform) | Ansys Learning Forum","description":"Hi,I want to study a compressed beam in Ansys Mechanical APDL. 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