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Keonkim1991

Periodic Boundary Conditions (RVE)

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Is there any example of periodic boundary condition for a cubic (Unit Cell)?

As an example, bottom plane is fixed whereas top plane is -1% displacement, and result stress contours can be predicted for mesh or macro structures.

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Hi,

 

I couldn't find an example specific to unit cell.

 

Here is an example on how to use periodic boundary conditions using OptiStruct: OS-E: 0705 Periodic Boundary Conditions

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Thank you very much.

Could I ask for some suggestions?

I'm modeling one unit cell of an infinite tassellation (such as lattice structures); the objective is to find the stiffness of the cell, simulating different loadcases.

So, I need to use PBC on the single unit. In your opinion, what type of perbc best fits my case? I was thinking about mirror.

Thanks,

Enrico

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