Material Density Display/Export dialog box

Result Selection
Result	Specifies the design cycle to work with.The number of available design cycles depends on how Maximum Number of Design Cycles (DESMAX) and Recovery Option (NASPRT) were set in the Solution dialog box before the solution was solved.
Display Settings
Solid Area	Lower BoundFor solutions that do not include a lattice, sets the minimum material density value for the elements to include in the optimization results. You can also type the appropriate value in the box and then press Tab. The range is from 0.0 to 1.0. As you reduce the lower boundary, more elements appear in the results. As you increase it, more elements are removed.For solutions that include a lattice, this sets the minimum material density range for the solid elements. The value that you specify here determines the valid range for the lattice area. For example, if you set this value to 0.7, you can apply a lattice structure only to elements with material density values between 0.0 and 0.7. As you increase the solid area lower boundary, more solid elements are removed from the results. As you reduce it, more solid elements are added.ColorDisplays the Color dialog box so that you can specify the color of the elements with a material density value greater than the defined lower boundary.
Lattice Area	Appears when Penalty Law (DMRLAW) is set to LATTICE in the Solution dialog box.Lower BoundSets the minimum material density value for the lattice structures.You can also type the appropriate value in the box and then press Tab.The lower boundary for the lattice structures cannot be greater than the lower boundary for the solid elements. For example, if the lower boundary for the solid elements is 0.7, the lower boundary for the lattice structures must be between 0.0 and 0.7. As you reduce the lower boundary for the lattice area, more lattice structure elements appear in the results. As you increase it, more elements are removed.ColorDisplays the Color dialog box so that you can specify the color of the elements with a material density value less than the defined lower boundary for the solid area (that is, the lattice area).
Smooth (Nodal Average)	Smooths the elements by averaging the material density values between the nodes and displaying that portion of each element that is greater than the specified lower boundary.As a result, smoothed results with the same number of elements might appear different with a different lower boundary.
Automatic Display Update	Updates the results in the graphics window dynamically as you change the display settings.Tip: For large or complex models, clearing this check box might improve performance.
Update Display	Appears when the Automatic Display Update check box is cleared.Lets you display in the graphics window any changes that you made to the display settings.
Export Model Settings
All exported files are saved in the same folder as the Simulation file using the name [simulation_file_name]-[solution_name].[ext].
Additional Smoothing	Specifies what type of additional smoothing to apply to 3D tetrahedral elements.NoneNo additional smoothing is applied.Laplacian SmoothingThe elements are further smoothed based on their proximity to one another.
Smoothing Level	Appears when Additional Smoothing is set to Laplacian Smoothing.Sets a factor that determines the number of times to run the smoothing algorithm.Alternatively, you can type the appropriate value in the box and then press Tab. The range is from 0.0 to 1.0.Higher values produce greater smoothing, but also shrink the model.Note: Changes to the Laplacian smoothing level are not visible in the graphics window. To visualize the effect of any changes, you must export the model and then import it in the Modeling or Pre/Post application.
Facets in STL Format	Exports the element free faces of the model as an STL file that you can import into the Modeling application.
Facets in Nastran BDF Format	Exports the element free faces of the model as a Nastran BDF file that you can import into the Pre/Post application.
Density CSV	Appears when the Smooth (Nodal Average) check box is cleared.Creates a comma-separated values (CSV) file that indicates the material density value for each element in your model.This file also includes the lattice structure type and the lower boundary for the material density values for the solid and lattice areas. For more information, see Lattice structures.
Verification Solution
Create	Available when the Smooth (Nodal Average) check box is cleared.Creates a copy of the original topology optimization solution that includes only the elements that were retained during the optimization process.By solving the verification solution, you can examine results such as displacement and stress in the optimized model.

How do I

Create a verification solution

Export the optimized model

Learn more

Adjusting and smoothing the material density

Verification solutions

Exporting the optimized model

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Material Density Display/Export dialog box, Simcenter 3D 2021.1 Series

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