Three different materials can be set up in MSC Apex Generative Design:
Isotropic Material
The properties of Isotropic material are uniformly in all directions. Therefore, only one Young's modulus, one Poisson’s ratio and the tensile stress limit is needed as well as the density value.
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3D Transversely Isotropic Material
The properties of 3D Transversely Isotropic material are directional dependent. One direction (axial / build direction) differs from the two other in-plane directions. The z-axis is always the build direction, the y- and x-direction are the in-plane directions. As an input the Young's modulus for the build direction as well as for the in-plane directions (E2=E3) are needed. Furthermore, the Shear Modulus and the two Poisson’s ratios for in-plane and axial are desired. All further necessary values are calculated in the background.
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Choose 3D Orthotropic to create a 3D Transversely Isotropic material and leave the values for the third axis (E3=x) empty.
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3D Orthotropic Material
The properties of 3D Orthotropic material are directional dependent. For every main axis a different Young's modulus is needed as well as Shear Moduli for all planes and the Poisson’s ratios.
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