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P-Delta with Shell elements - no increment on lateral displacements

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Message 1 of 3
Anonymous
293 Views, 2 Replies

P-Delta with Shell elements - no increment on lateral displacements

Hi there,

 

I have a deformed beam (I moved the nodes to simulate an imperfection) and when I run a second order P-delta analysis I get the exact same results as in a first order analysis.

 

I've attached my simple model for your convenience.

 

Thanks

Tiago

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Message 2 of 3
Rafacascudo
in reply to: Anonymous

Results are not exactly the same .

 

node displacements.jpg

 

Maybe due to the  small applied vertical load

Rafael Medeiros
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Message 3 of 3
Anonymous
in reply to: Rafacascudo

Hi Rafa, Thanks for your reply.

 

I'm expecting an increase of 1/(alfa,crit-1) not some really residual differences when I have such low alfa crits.

 

Cheers

Tiago 

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