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Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

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behrooz_ghaemi
Posts: 28
Joined: Tue May 15, 2007 2:46 am
Location: tehran,amir kabir university

error message

Post by behrooz_ghaemi »

what dose this message mean?
bandgenlapa solver::solve()-lapack routine returned1

newtonraphson::solvecurrent step()-the linear sysofegn failed in solve()
- static analisys::analyze()- the algorithm failed at iteration 0
silvia
Posts: 3909
Joined: Tue Jan 11, 2005 7:44 am
Location: Degenkolb Engineers
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Post by silvia »

likely, your structure is not well constrained.
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
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