This video demonstrates how to create cross-sectional segment sets for an LS-Dyna electromagnetic model in Ansys Workbench. Beginning with geometry prepared in Ansys Discovery, the tutorial walks through how to share topology between split geometry faces, transfer the model into a Workbench LS-Dyna analysis, and define the named selections needed for the electromagnetic solver.
After the model is transferred into Workbench, half of the split geometry can be hidden to make the appropriate cross-sectional regions easier to access. This makes it easier to isolate the internal areas needed for the setup and clearly identify where the cross-sectional named selections should be applied.
From there, named selections are created on the relevant cross-sectional element faces — an important distinction, since element faces rather than body faces must be selected for this workflow. Selecting the correct entity type is key to ensuring the setup behaves as intended within the electromagnetic analysis.
Key Takeaway
When creating cross-sectional named selections for this workflow, be sure to select element faces rather than body faces. This is the key step that allows Workbench to generate segment sets for the electromagnetic solver.
These cross-sectional named selections are then automatically converted into segment sets appropriate for the electromagnetic solver, reducing the need for additional manual setup and helping streamline this part of the modeling process. This built-in conversion also helps create a more efficient path from geometry preparation to solver-ready model definition.
For users working with LS-Dyna electromagnetic workflows, this tutorial highlights an efficient way to move from prepared geometry to solver-ready segment sets within Workbench. It also reinforces a few of the small but important setup details that can make these workflows easier to execute correctly and repeat with confidence.
Explore More LS-Dyna Resources
Looking to learn more about LS-Dyna workflows in Ansys Workbench? Explore the software page for additional information, or connect with our team if you’d like help with training, support, or simulation guidance.

Ben Watson, MS, Electrical Engineering
Senior Staff Electrical Engineer, SimuTech Group
Ben Watson is a Senior Staff Electrical Engineer at SimuTech Group, where he supports customers with advanced simulation workflows using Ansys software. His background includes electromagnetic modeling, electrical engineering, and high-energy systems, with experience spanning research, product development, and applied engineering. Ben holds both a master’s and bachelor’s degree in electrical engineering from Arizona State University.





