Non convergence of non linear analysis of a ground slab

[lucia_cocanaJ2SUA]

I am modeling a foundation slab with different thicknesses for equipment support. The thickness changes are modeled by means of rigid links. The calculation does not converge for the self-weight hypothesis. Could you help me with this?

[Simau]

@lucia_cocanaJ2SUA 

Could you share your model

Zip it before attaching

[lucia_cocanaJ2SUA]

Hi

Find attached the calculation model.

Kind regards

[Simau · Accepted solution]

@lucia_cocanaJ2SUA 

Removing the rigids LINKS and putting all the panels on the same level will not change the results.
The model converges after this modification.
I also changed some parameters of the nonlinear analysis:
Simple cases 2 3 4 as auxiliary
Marix update after each operation checked
Tolerance at 0.0005 instead of 0.002

Model attached

https://we.tl/t-bZYCbL9EUi

[lucia_cocanaJ2SUA]

Thanks for your help.

Kind regards.