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 cfast converter tool to convert CFAST elements into CBAR/RBE3 (spiders). For thermoelastic analysis, the CFAST
has no thermal expansion coefficient. CBAR is thermoelastic compatible.
Use the Stuck Node Creation tool to create (double) RBE3 connection to "stick" nodes on QUAD or TRIA elements to make
the node displacements following the element ones.
Fastener Setup
Create node-to-node CBUSH elements at the connector locations point/node or line.
Convert CFAST Elements
Use the cfast converter tool to convert CFAST elements into CBAR/RBE3 (spiders). For thermoelastic analysis, the CFAST has no thermal expansion coefficient. CBAR is thermoelastic compatible.
Stuck Node Creation
Use the Stuck Node Creation tool to create (double) RBE3 connection to "stick" nodes on QUAD or TRIA elements to make the node displacements following the element ones.
Create Linear Gaps
Use the Linear Gap tool to create linear gap analysis cards for Nastran and OptiStruct.
Sewing Tools
Connect two dissimilar 2D shell meshes using RBE3 connection.