{"id":184684,"date":"2021-07-07T11:34:10","date_gmt":"2021-07-07T11:34:10","guid":{"rendered":"\/forum\/forums\/reply\/184684\/"},"modified":"2021-07-07T11:37:37","modified_gmt":"2021-07-07T11:37:37","slug":"184684","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/184684\/","title":{"rendered":"Reply To: Which analysis to use for dynamic and quasi-static compression of auxetic structures?"},"content":{"rendered":"<p>In Explicit Dynamics, you want to ramp the velocity up from zero to some value. If you apply an instantaneous velocity at t=0 then you are introducing a huge shock into the structure. Don&#8217;t do that because it will create a lot of noise in the results. You can request the reaction force to the velocity boundary condition.<br \/>\nIf you apply a force, it will create an acceleration on the mass. You must have enough mass to avoid creating a huge acceleration. If you don&#8217;t apply enough force, the motion will stop when the resistance of the structure pushes back with an equal force.<br \/>\nThere are several output results concerning Energy. You will have to do some research on this site. Others have asked this question. Here is a Google Search result for this question:<br \/>\nUnfortunately, the post that had a copy of this model did not get transferred when the site was upgraded.<br \/>\n<a href=\"\/forum\/discussion\/27032\/many-broken-links\" target=\"blank\">\/forum\/discussion\/27032\/many-broken-links<\/a><\/p>\n","protected":false},"template":"","class_list":["post-184684","reply","type-reply","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=\"In Explicit Dynamics, you want to ramp the velocity up from zero to some value. If you apply an instantaneous velocity at t=0 then you are introducing a huge shock into the structure. Don&#039;t do that because it will create a lot of noise in the results. You can request the reaction force to the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/184684\/\" \/>\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=\"Reply To: Which analysis to use for dynamic and quasi-static compression of auxetic structures? | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"In Explicit Dynamics, you want to ramp the velocity up from zero to some value. If you apply an instantaneous velocity at t=0 then you are introducing a huge shock into the structure. Don&#039;t do that because it will create a lot of noise in the results. You can request the reaction force to the\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/184684\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-07-07T11:34:10+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-07-07T11:37:37+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Which analysis to use for dynamic and quasi-static compression of auxetic structures? | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"In Explicit Dynamics, you want to ramp the velocity up from zero to some value. If you apply an instantaneous velocity at t=0 then you are introducing a huge shock into the structure. Don&#039;t do that because it will create a lot of noise in the results. 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