Hey Ignacio!
You can use field variables to specify spatially varying densities.
Please see if the following links are helpful:
Field Variables (ansys.com)
Spatial Varying Loads and Displacements (ansys.com)
How to Create Variable Force Loads in ANSYS Workbench Mechanical - YouTube
How to vary density along one axis in Ansys Workbench
how to define a material with density that vary with position (ansys.com)
Thanks!
For more information, check out the following links:
Ansys Help
Ansys Learning Forum (Rules & Guidelines)
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