ModIMKPeakOriented & Time History analysis

[mehdikia2519]

Dear fm
When I do time history analysis with ModIMKPeakOriented material , the analysis can not converge but by changing material the analysis run without any problem .
it is worth noted that the static analysis with ModIMKPeakOriented material go on without any problem .
thanks a lot for your attention

[kostast88]

If it happens even at first time steps of analysis,make sure that you assign a negative value on My_neg, this is a common mistake.

[mehdikia2519]

thanks a lot for your attention and answering to my question dear Kostast88
it is worth noted the the common mistake mentioned above is not available in my model , also i said the pushover analysis go on without any problem while availability of above mentioned mistake should be interrupt the analysis .

[fmk]

you either need to change the model or handle the non-convergence in the analysis script, as demonstrated in the analysis part of the following:

http://opensees.berkeley.edu/wiki/index ... e_Analysis

and as shown in many other examples.

[mehdikia2519]

Dear fmk
thanks for your advise