hello ...
I tried to run my script using OpenSeesSP. It is a 3D 3-story RC frame with nonlinear concentrated hinges.
the model runs very quickly in comparison to OpenSees in the pushover case.
However, while trying to run the time-history analysis in OpenSeesSP, I got convergence problems. I used Penalty method as the constraint handler and changed the system to Mumps.
there is no such problem while using OpenSees. I changed Penalty alpha value many times in the OpenSeesSP model, but the convergence problem still exists.
Please let me know what the problem is.
Thanks
Error in dynamic analysis using OpenSeesSP
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