{"id":165327,"date":"2022-01-06T15:02:06","date_gmt":"2022-01-06T15:02:06","guid":{"rendered":"\/forum\/forums\/topic\/is-it-possible-to-get-similar-results-by-using-solid185-and-shell281-element-types\/"},"modified":"2022-01-10T06:54:09","modified_gmt":"2022-01-10T06:54:09","slug":"is-it-possible-to-get-similar-results-by-using-solid185-and-shell281-element-types","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/is-it-possible-to-get-similar-results-by-using-solid185-and-shell281-element-types\/","title":{"rendered":"is it possible to get similar results by using Solid185 and Shell281 element types?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Dear all, <\/p>\n<p>I am currently working on my modal analysis of FRP plates. I used Shell281 to model a Graphite-Epoxy composite plate under SSSS boundary condition and the result I got is close to my validation results. However, when I used Solid185 to model the same plate, the results obtained are no longer agreed with the one obtained using Shell281. I have set the layer construction to layered solid and I have defined the fibre orientation using the shell sections. So I am wondering is it the problem is due to my setting? <\/p>\n<p>When using Shell281, the SSSS B.C. were set by setting the 4 edges to have zero displacements in z-direction (upward direction) and the rotation normal to the edge was also set to zero (i.e. ROTX = 0 when x=0 and x=a &amp; ROTY = 0 when y=0 and y=b). <\/p>\n<p>While for Solid185, I set all edges to have zero displacements in the y-direction (upward direction) and zero displacements for the DOF parallel to the edge (i.e UX=0 when z=0 and z=b &amp; UZ=0 when x=0 and x=a). i had modelled it as a solid and divided the thickness into the required number of layers when meshing.<\/p>\n","protected":false},"template":"","class_list":["post-165327","topic","type-topic","status-closed","hentry","topic-tag-ansys-apdl","topic-tag-element-types-2","topic-tag-modal-analysis"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Dear all, I am currently working on my modal analysis of FRP plates. 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However, when I used Solid185 to model the same plate, the results obtained are no longer agreed with\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/is-it-possible-to-get-similar-results-by-using-solid185-and-shell281-element-types\/\" \/>\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=\"is it possible to get similar results by using Solid185 and Shell281 element types? | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Dear all, I am currently working on my modal analysis of FRP plates. I used Shell281 to model a Graphite-Epoxy composite plate under SSSS boundary condition and the result I got is close to my validation results. However, when I used Solid185 to model the same plate, the results obtained are no longer agreed with\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/is-it-possible-to-get-similar-results-by-using-solid185-and-shell281-element-types\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-01-06T15:02:06+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-01-10T06:54:09+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"is it possible to get similar results by using Solid185 and Shell281 element types? | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Dear all, I am currently working on my modal analysis of FRP plates. I used Shell281 to model a Graphite-Epoxy composite plate under SSSS boundary condition and the result I got is close to my validation results. 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