Is there anyone working on nonlinear analysis TNO DIANA ?

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Bahman Ghiassi

Convergence problem can occur die to several issues such as

(i) inappropriate selection of iterative method

(ii) inappropriate selection of convergence criteria

(iii) inappropriate selection of load steps

(V) wrong material properties

and etc.

Have you checked all these possibilities?

Please provide additional information regarding your model, analysis type ,etc. or share your .dat and .dcf files.

Moatasem Fayyadh

I faced same issue several times, the best to overcome such thing by changing the load steps and iteration method, try different values and you will get your results