Objective:
Set up a simulation for a Shell Lattice with a solid body and learn how to use the Shell Attribute.Applies to:
- Cutting down meshing time
- Simulating Shell Lattices
Procedure:
- Set up: We start with an imported CAD Model:
- The CAD bodies have been converted to implicit bodies
- The volume lattice was generated using the inner implicit body region
- FE Mesh: To simulate our geometry, we need two separate FE Meshes. One for the lattice and one for the solid border.
- Add an FE Lattice Mesh block and input the Interior Lattice.
- Set the Geometric Order to Linear and leave the Subdivisions as 1.
- Simulation Domains: The Simulation Model needs a Domain for every mesh.
- Create the Shell Domain: Add a Solid Domain.
- Input the FE Lattice Mesh from Step 2.
- Input a Shell Attribute.
- Set the Thickness and Material.
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- Create the Outer Solid Domain: Add a Solid Domain.
- Input the Outer FE Mesh from Step 2.
- Input a Solid Attribute.
- Set the Material.
- Simulation Model - Tie Constraint: Any Simulation Model with more than one domain needs a Tie Constraint to define how the domains are tied together.
- Add a Tie Constraint block in the Connector input.
- Add an FE Boundary by Body block to the Independent and Dependent Boundary inputs.
- For the Independent Boundary, use the outside border. Use the FE Boundary by Body block to select it.
- For the Dependent Boundary, use the Shell Lattice. Use the FE Boundary by Body block to select where the Shell touches the Outer border.
- Set the Radius on the Tie Constraint to 1mm to allow for the Shell Lattice to be selected.
