In order to converge the local nonlinearities as well, you can increase the number of load increments and/or refine the tolerance of the global convergence criteria. Thus, the computation kernel is forced to use more iterations so the local convergence conditions are kept, too.
Keeping Local Iteration Conditions
If nonlinearities are used in a model (for example, contact solids), an error message may appear at the end of the calculation due to the locally unfulfilled convergence criteria. The reason for this is that the convergence of the global iteration conditions governs in the calculation.
Author
Mr. Fröhlich provides technical support to our customers and is responsible for development in the area of reinforced concrete structures.
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