Links with FEA

[virtuamechanica]

I was wondering about possibilities of this Amazing library to transfer data for structural analysis (homogenization, etc) with FE solver such as Abaqus or Open-source Calculix,..).

[LinKayser]

The biggest challenge is the meshing. We are currently focusing on interacting with quasi-meshless sim packages, like Intact solutions, etc. The good thing about a Computational Engineering Model is that it knows the purpose of the geometry it is generating, so it is possible to automatically "tag" the meshes in the right way.

But meshing is a bit of a dark art, so "someone" has to translate the rules into code. But PicoGK can output triangle meshes, and from there, it should be possible.

We will explore this further from LEAP 71 as we go along, but, again, we are more focused on meshless right now, because our voxel fields feed right into that method (Lattice-Boltzmann etc.).

@josefinelissner put up a few examples in this repo, so check it out.

Hope this helps!
Lin

[josefinelissner]

Hi @virtuamechanica !
I just set up a discussion for that: #32
An feel free to check out this initial example (although for fluid simulation): https://github.com/leap71/PicoGK_SimulationExample

[virtuamechanica]

Thank you Josefine!

[virtuamechanica]

Hello,

always related to the topic of link with simulation:
Could it be possible for you to build a dedicated tutorial (or at least indicate the main steps to follow) for doing this task: hollowing a volume starting from a stress field.
For example, i have a femoral implant volume geometry, and i want to build lattices inside with variable density. Of course the density should be dicted by stresses tensor values taken from a given FEA.
Is it possible to import a brep geometry in order to hollow it (since picoGk philosophy seems to build and assemble primitives from scratch , using external fields, if my understanding is correct).

As a final stage, i would need to compute the result with FEA again.
The best would be to automatically optimize the lattices design (beams diameter, field density,..) from engineering requirements, but I am not sure that picoGk handle such cases.
Thank you!