cframe_iga segmentation fault

[HemiaoZhang]

Hi all,

I’m trying to run the cframe_iga example in
modules/solid_mechanics/examples/cframe_iga/ and attempted to generate the mesh using the provided:

coreform_cubit -batch cframe_build.jou

Cubit (2025.12, Linux, Student license) runs the geometry cleanup and FEM meshing, but the export to FEA mesh causes a segmentation fault. The CFrame_FEA_05_deg2.e file can be opened using Paraview, but the lines in the .jou file beyond this point are not executed.

Could you suggest any modification to the script? I am very new to cubit.

Thanks!

[GiudGiud]

@GregVernon what do you think could be the problem?
The script is here
https://github.com/idaholab/moose/blob/next/modules/solid_mechanics/examples/cframe_iga/cframe_build.jou

[GregVernon]

The Coreform Cubit functionality necessary to run that journal file to create the correct input data has been moved out of recent versions Coreform Cubit, the committed artifacts should still work in pipelines. I believe if you downgrade to Coreform Cubit 2024.3 it should work.

But really the core problem is that @roystgnr and I are still working on updates to documentation for the newer IGA capabilities, which I have on a branch on my fork. Here's an overview of the status:

1. Basic introductory theory is being written by me - largely completed in my branch.
2. The implementation should allow for anyone to create / define their own IGA preprocessing as long as it conforms to the file- / data-structure that Roy will document. I will then update (1) based upon the specifics of Roy's implementation.
3. Example workflows, that produce example files, are being documented by me, and this is largely complete in my branch.