


{"id":28349,"date":"2017-11-08T08:36:43","date_gmt":"2017-11-08T08:36:43","guid":{"rendered":"\/forum\/forums\/topic\/shell-element-with-orthotropic-materials-gives-very-different-results-from-experimental-data\/"},"modified":"2017-11-08T08:36:43","modified_gmt":"2017-11-08T08:36:43","slug":"shell-element-with-orthotropic-materials-gives-very-different-results-from-experimental-data","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/shell-element-with-orthotropic-materials-gives-very-different-results-from-experimental-data\/","title":{"rendered":"shell element with orthotropic materials gives very different results from experimental data"},"content":{"rendered":"<p>I am trying&nbsp;to analyze vibration characteristics of musical instruments which have a very thin wood plate.&nbsp; I can get similar results with using solid element but generally, researchers who work on musical instruments are using shell element and they say that you can get a reliable result with&nbsp;this method because a thickness of the plate is very small (2-3 mm) than its dimensions (360-460 mm). now, I am carrying out an experiment by using&nbsp;two rectangular plates (493x182x3 mm) on Ansys&nbsp;mechanical. First one is the only surface mashed with shell element (thickness is 3 mm), the second one is solid have same dimensions. As you can see attached images, if I choose structural steel for material, vibrations of two plates are similar. But I choose an orthotropic&nbsp;material such as wood, results&nbsp;do not match. additionally, results obtained from the solid element is closer to experimental data.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/44c683e3-4dd7-4998-97ba-a825007a4523\/2f688c4c-aaa2-473e-b124-a826007515d7_foruma-i?lenmi?.jpg?width=690&amp;upscale=false\" alt=\"\">&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-28349","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 am trying to analyze vibration characteristics of musical instruments which have a very thin wood plate. 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