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Non-linear buckling analysis

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rh142

rh142

Nuclear
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Jul 24, 2007
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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,
 
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