A surface represents the geometry associated with a physical part. A surface is a two-dimensional geometric entity that
may be used in automatic mesh generation.
Solids are closed volume of surfaces that can take any shape. Solids are three-dimensional entities that can be used in
automatic tetra and solid meshing.
A face is a single Non-uniform Rational B-Spline (NURBS) and is the smallest area entity. It has a separate underlying
mathematical definition, specified when it was created.
Use the Midsurfaces: Base Surfaces tool to specify a distance from the base surfaces of multiple solids that you wish to treat as if they were
continuous. This will help generate separate-but-aligned midsurfaces during extraction.
Use the Midsurfaces: Automatic tool to extract the midsurface of sheet metal stampings, molded plastic parts with ribs, and other parts that have
thickness clearly smaller than width and length.
FE geometry is topology on top of mesh, meaning CAD and mesh exist as a single entity. The purpose of FE geometry
is to add vertices, edges, surfaces, and solids on FE models which have no CAD geometry.
Use the Midsurfaces: Pocket Imprint
tool to imprint pockets, fillets, and other geometry features from the source geometry onto
the midsurfaces.
Imprinting makes midsurface thickness calculations more accurate by creating mesh
boundaries that match the feature boundaries on the original solid, and improves the
meshing quality by capturing the features of the solid model.
From the Geometry ribbon, click the Midsurfaces > Pocket Imprint tool.
Optional: On the guide bar, click
to define imprint options.
Select Lines or Surfaces from the Source
selector.
Select lines/surfaces.
You are not required to select the midsurface. HyperWorks automatically recognizes the midsurface
corresponding to the solid/surface component from which it was derived and
imprints the lines/surfaces on the midsurface component.
Optional: To manually select target surfaces, change the Target surfaces selection option
to Manual, activate the Target
selector on the guide bar, then select make your
selection.