I would like to know how could I mesh my assembly by 8-node-hexahedron elements? In the details of mesh, I couldn't find how to change the type of element.
I do not think Simulation supports a change in element type. You can switch to a curvature based mesher but that is about it.
brick elements are not support within the SWX interface. You can build mapped meshes in GEOStar which ships with the Simulation Premium bundle
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