{"id":379881,"date":"2024-08-22T18:38:10","date_gmt":"2024-08-22T18:38:10","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modeling-viscoelastic-materials-in-ls-dyna\/"},"modified":"2024-08-22T18:38:10","modified_gmt":"2024-08-22T18:38:10","slug":"modeling-viscoelastic-materials-in-ls-dyna","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modeling-viscoelastic-materials-in-ls-dyna\/","title":{"rendered":"Modeling Viscoelastic Materials in LS-DYNA"},"content":{"rendered":"<p>&lt;p&gt;I want to use a Prony series to model a viscoelastic material with LS-DYNA in Workbench. When I have my analysis system set as LS-DYNA and I filter the engineering data, I am able to select and edit the Prony series option in Workbench. However, when I try to run the simulation in Mechanical, I get these errors:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/22-08-2024-1724351606-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;I&#8217;m not sure why the properties would not be supported. It also seems like I do not have the solver for LS-DYNA with my version of ANSYS. I have a free student version of it. I also have LS-DYNA separately installed, so I have been able to export a keyword file to run the simulation in LS-Run, but the viscoelastic portion of my material model does not get transferred over, just the elastic part. Is there any way I can get LS-DYNA to run a simulation with a Prony series?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-379881","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 want to use a Prony series to model a viscoelastic material with LS-DYNA in Workbench. When I have my analysis system set as LS-DYNA and I filter the engineering data, I am able to select and edit the Prony series option in Workbench. 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