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dynamic time history analysis (error message)

Posted: 23 Sep 2009, 16:25
by meser
Hi,

As I am running dynamic time history analysis, the analysis often stops and reports that "Unable to apply next load step. Analysis terminated".

what does that mean? Does it mean that there is a stability problem such as my system is not stable anymore.

Best regards.

Re: dynamic time history analysis (error message)

Posted: 28 Sep 2009, 10:20
by seismosoft
Yes, it means that your structure cannot withstand any further loading, either because it became structurally unstable or because there is an error in the model.

Have a look at response parameters such as strains, storey drifts, etc, in order to understand better what is happening. (using the 'Performance Criteria' function may be useful for this)

Seismosoft Support