Failed to get compatible element forces & deformations

[Toutant]

Dear all,

I built a steel SCBF model to study buckling and post-buckling response of columns. I coded the analysis part in such a way that if the analysis fails to converge, the displacement increment (pushover analysis) or the timestep (time history analysis) will be reduced.

My question is, sometimes, right before the displacement increment or timestep is reduced, OpenSees will issue the following warning : WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element...
then it will reduces the displacement increment or timestep depending on which analysis is performed. My understanding is that this warning is not something I should worry about because right after this, OpenSees goes back in time and retry that same step with a reduced displacement increment or timestep. Is this correct or should I worry about this warning and disregard the results.

Thanks.

[fmk]

if that message pops up the analysis does fail for that step and the model does go back in time to last converged step .. so yes you are correct