Increasing Number of Iteration per Substep

Recently I came across a problem where the large deflection solution that has Body-to-Body beam connection that wouldn't converge. Ansys bisected at the maximum number of  iterations (26) and then halved the load step again... and again...

The trick was to add a command snippet in the solve section:

...with the following text containing NEQIT to increase the maximum number of iterations per substep :
    neqit, 75

and VOILA! It Solves!

Comments

  1. Sarb SinghMarch 27, 2021 at 1:16 AM

    Hi there, was looking for solution of similar kind of problem. I am working on frictional contact problem, structural analysis of overhanging components.
    Just as force criteria is about to converge, Ansys pops up a message ( in solution section) about substep unable to converge in 26 iterations and starts AGAIN.
    Will this command work in my case?
    Many thanks in advance.
    Regards

    ReplyDelete

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