Simulation is not converging at all (K2 and K2Engineering)

Hi guys,

I’m trying to reproduce the work of Cecilie Brandt on Calibrated Bending Active Gridshells using K2 and K2Engineering. My problem is that my model is not converging at all, although displacements and stresses stabilize after a while, the solver never reachs a converged status.

If someone of you could take a look on what could be the reason for this…

Modelo 1.3dm (51.3 KB)
Modelo (290.9 KB)