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Goal of this tutorial
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Import/create the Design Space including the Interfaces (Non-Design Spaces) in MSC Apex Generative Design as one solid. For this Bridge the already prepared Design Space and Non-Design Spaces were imported.
The CAD-file includes several solids. Thus, only one solid is supported for an optimisation, with a Boolean operation the solids can be merged to one. Activate Merge Solids as Cells to create partitions which can be used for Non-Design Spaces.
Open the Design Space Tool in the Optimization Tools to select the imported Geometry as the Design Space. Activate the Symmetric Design Constraint and select the XY and YZ planes to set up the symmetric optimisation.
Non-Design Spaces have to be selected using the Non-Design Spaces Tools. Therefore, the Design Space Object can be hidden. In this case the top plate as well as the foot are directly selected as Non-Design Spaces.
Create the material in the Materials editor and assign it to the Design Space. In this case the material behaviour is Isotropic.
The specific values needed are the Young's Modulus (192372 MPa), Poisson ratio (0.3) and Density (7.97e-6 kg/mm3).
The Tension Strength is the maximum allowable stress for the material and is set to 320 MPa.
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Interfaces have to be created for every functional surface - so every surface where a boundary condition is applied to. With this Tool an offset to the inside with the input “Interface Thickness”(Non“Non-Design Space ) Thickness” and an offset to the outside with the input “Machining Allowance” is created. The Offset Distance is expanding the Interface to the set value to create material on front faces.
One Interface is created on the same surface the force is applied to. Therefore, an Interface Non-Design Space Thickness of 1 mm and a Machining Allowance of 1 mm is entered. Now select the surface and confirm the selection (MMB)
One Interface is created on all surfaces of the fixation Non-Design Space. Therefore, an Interface Non-Design Space Thickness of 1mm and a Machining Allowance of 1mm is entered. Now select the surfaces and confirm the selection (MMB).
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The legend can be influenced in different ways. You can add and reduce the stress/displacement steps, enlarge different steps and set new minimum and maximum values. The picture below shows the stress distributionwith a scale spectrum from 0 to 2 times the stress goal, which is a good fit for all optimisations. This displays the even distribution of the selected stress goal with the colour range of green and critical points are viewable in red.
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You can go back to the model setup by clicking the Exit button in the right bottom corner.
Generative Design
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The whole MSC Apex Generative Design project with all results can be downloaded here: Coming Soon!
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