How to quantitatively analyse dump-files of UCT

Hello everybody,

I want to simulate some experimental tests, like triaxial compression tests, shear tests and uniaxial compression tests. Herefore I want to use and augment the examples "compression" and "compression_triaxial" (which are not part anymore of the actual liggghts-package, I think).
My idea for an uniaxial compression test is, to add xplane and yplane to the example "compression" to have a rigid quadratic box, whose cover plate moves with a linear velocity into the bulk material, to simulate the compression.

I think by post-processing the dump-files with Paraview, it's just possible to analyse the results qualitatively, right? Like the stress on the triangles of the walls. Or is it also possible to create some kind of plot in Paraview, like a stress-strain-curve?
If it's not possible in paraview, is it a good way to do it in Matlab?

My idea for the asssessment of the stress-strain-curve of an UCT is the following:
stress:
(sum of all z-wallforces of particles that touch the cover plate, which moves towards the bulk material) divided by (area of cover plate)
strain:
movement of the coverplate which I determined in the input-script.

Thanks in advance for your advices and hints,
kind regards,

Sebastian