Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Non-linear buckling analysis

Thread starter rh142
Start date Jun 23, 2008

Status: Not open for further replies.

Jun 23, 2008

rh142

Nuclear

ANSYS help recomends that if SSTIFF is used for non-linear buckling analysis adaptive decent should be turned off to get a lower bound. What if SSTIFF is turned off?

I have found that adaptive descent is helpfull when doing elastic-plastic analysis, turning it off will give an unrealistic low number.

Any insight is welcome.

Thanks,