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giuseppe abbiati

Failed convergence

Hello, I’ve a problem with a set of 12 nonlinear 2D fiber OpenSEES model. 3 degrees of freedom over 2 nodes (36 DoFs in total) are shared for each model. Each single model works fine whitin OpenSEES 2.3.2 but UI-SimCOR stops during the first 20 steps of the stiffness estimation saying that it didn’t receive signals within the expected time. I set the same solver’s parameters of OpenSEES without success. The model are quite refined, but they took just few minutes for 3000 steps displacement control static (strongly nonlinear) analysis.

Many thanks in advance for any suggestions

Giuseppe Abbiati

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