Geometric imperfections 1

[timetojack]

Hi, I want to apply geometric imperfections on my model, there is any way to do this in Femap?
I know that Abaqus can do it.
Thanks.

 

[ThomasH]

Hi

I would say that it depends om what you want to base the imperfections on. But since you say Femap let's do in in Femap.

Try with "Custom Tools" - "Postprocessing" - "Node moves by deform (with options)". Than you can move the nodes based on the deformations in a Output Set.

Another way is to do it in the solver (depending on the solver). Run the analysis and let the deformed geometry be the base for the continued analysis.

But the first option involves only Femap. Obviously you can also move the nodes individually by simple node editing but that is often impractical.

Regards

Thomas

 

[trainguy]

If this is for buckling analysis, you could always apply small out of plane loads at various points.

tg