{"id":163765,"date":"2021-11-05T17:15:21","date_gmt":"2021-11-05T17:15:21","guid":{"rendered":"\/forum\/forums\/topic\/compression-testing-of-a-gyroid-lattice\/"},"modified":"2024-05-09T09:31:39","modified_gmt":"2024-05-09T09:31:39","slug":"compression-testing-of-a-gyroid-lattice","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/compression-testing-of-a-gyroid-lattice\/","title":{"rendered":"Compression testing of a gyroid lattice"},"content":{"rendered":"
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Hello all!<\/p>\n

I want to simulate the compression testing of a gyroid unit cell using two rigid plates at the top and bottom. For this, I have imported the gyroid unit cell from nTopology and made bonded connection with two rigid plates at the top and bottom. The material used in the gyroid unit cell is Titanium alloy NL. But after running the simulation I am getting an error message which says: <\/p>\n

"Element 30896 located in Body "Solid Body 1(External Model)" (and maybe other elements) has become highly distorted. You may select the offending object and\/or geometry via RMB on this warning in the Messages window. Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. Try incrementing the load more slowly (increase the number of substeps or decrease the time step size). You may need to improve your mesh to obtain elements with better aspect ratios. Also consider the behavior of materials, contact pairs, and\/or constraint equations. If this message appears in the first iteration of first substep, be sure to perform element shape checking. Named Selections for the offending element can be created via the Identify Element Violations property on the Solution Information Object."<\/p>\n

I have already tried with auto time stepping ON and increasing the number of steps for the load. But I am still getting the same error message. Can anyone please tell me how I can rectify the error and run the simulation successfully? <\/p>\n

The screenshot of the model is shown below.<\/p>\n

Thank you in advance!!<\/p>\n

Best, Ranjan<\/p>\n

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