15. Structural Optimization

Release 2025 R2 includes the following Structural Optimization analysis enhancements:

  • Optimization Methods. A new optimization method is now available: Materials Optimization. This method enables you to determine the optimal distribution of different materials in one domain.

  • Member Size Manufacturing Constraint. The Member Size manufacturing constraint has been enhanced. The Minimum, Maximum, and Gap Size properties have been reconfigured into separate categories and a new Measurement Type property now enables you to further define how maximum thickness and gap size are computed. Using the properties associated with the Measurement Type property, you can now define the thickness and gap size on a selected plane of the model based on a specified coordinate system.

  • User Defined Criteria.

    • For a Steady-State Thermal analysis, you can now specify User Defined Criteria using the Primary Criterion object (only). This feature includes the base result Temperature to evaluate thermal responses. You use this data to quantify the performance of your design or you can use it in a downstream Structural Optimization analysis to specify the Objective object or for a Response Constraint.

    • The Spatial Reduction property has a new option: Standard Deviation. This option computes the standard deviation of the base result over the selection.

  • Local Design Restriction. For the Shape Optimization and Topography methods only, the Type property of the Local Design Restriction object has the following new options:

    • Along Direction Morphing: The application only displaces the nodes of the specified selection along a defined coordinate direction.

    • Along Normal Morphing: Nodes of the selection can only be displaced along the initial normal of the surface.

    • Free: The application can displace nodes in any direction up to a specified distance.

    • Inward Morphing: The application can only displace nodes inward up to a specified distance.

    • Outward Morphing: The application can only displace nodes outward up to a specified distance.

  • Pull Out Direction Manufacturing Constraint. Now, for the Topology Optimization - Level Set Based optimization method, you specify a Pull Out Direction constraint that has the Direction property set to Both Directions, a new category of Details pane properties is available: Parting Surface Control Group. The category includes the property Parting Surface Control. Using this property, you specify whether or not to impose a parting surface and if so, the definition of this parting surface.