{"id":236308,"date":"2022-09-26T15:22:48","date_gmt":"2022-09-26T15:22:48","guid":{"rendered":"\/forum\/forums\/reply\/236308\/"},"modified":"2022-09-26T15:22:48","modified_gmt":"2022-09-26T15:22:48","slug":"236308","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236308\/","title":{"rendered":"Reply To: Element has excessive distortion."},"content":{"rendered":"

<p>A 10 mm thick displacement of the bottom facesheet relative to the top facesheet with a 10 mm thick core is an absurdly large amount.  What is core material and wall thickness?  What is the facesheet material and thickness?<\/p><p>Is the core manufactured by corrigating and bonding two thin sheets together? That creates a double thick wall in one direction. Did you do that in your model?<\/p><p>\"\"<\/p><p>Here is the test apparatus from ASTM C273 -11 Standard Test Method for Shear Properties of Sandwich Core Material.<\/p><p>\"\"<\/p><p>If you don’t want to switch to Force, I recommend that you select the row of nodes on the bottom facesheet at the opposite end <\/strong>of the sandwich from the row that has the x,y constraints on the top face sheet. Use a Displacement of Y=0 to prevent rotation about the first edge.  Is the sample 50 mm long?  In that case, 1% strain would be 0.5 mm. Use a Displacement of X= -0.5 mm to those bottom edge nodes to put the facesheets into tension at each end. Use 100 initial and minimum substeps, 1000 substeps maximum, in the solution.<\/p><\/p>\n","protected":false},"template":"","class_list":["post-236308","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t