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• Create the material in the Materials editor and assign it to the Design Space

• Assuming the part should be printed with a Manufacturing Method like FFF, a Transversely Isotropic material is applied. The z-axis of the PCS is always the build direction ( * ) and differs from the two in-plane directions y and x. The values for the materials have to be entered accordingly. For the input the main axis (1-2-3) are used which are equal to (z-y-x).

• The specific values needed are the Young's Modulus in build direction (E1) (1700 MPa) and in in-plane direction (E2) (1900 MPa), the Shear Modulus (G12) (730 MPa) and the Poisson ratio (0.3) for xy (NU23) and (0.39) for yz (NU12). The density is set to 0.9e-6 kg/mm³.

• As the last input the material limits should be entered. Which of these are required depends on the optimisation intention and the chosen Failure Criterion. In this case we want to take advantage of the directional dependent material limits as well as different limits for tension and compression (directional dependent Tsai-Wu).

  • These values are optional, if a different Failure Criterion is selected, less material input is required

* The Build Direction will be adjusted later (Step 6)

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One direct load is created (Force - Moment 1) on the shown surface with the given value in the table.

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One Constraint on the mounting holes inner surface is created:

Therefore, the Loads & Boundary Condition Tool is needed.

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For each scenario the Build Direction can be easily changed, then the Build Direction for the Design Rules as well the material properties are rotated accordingly. This way multiple Build Directions can be checked in one project. Afterwards the optimisation results can be compared in the Post Processing and the best build orientation can be picked

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The whole MSC Apex Generative Design projects with all results for the different anisotropic behaviour settings can be downloaded here:

You might also be interested in these tutorials:

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