Is there a means to map the buckled mode shape from an eigenvalue buckling analysis to a shell mesh of a pipe?

This is one way of modeling a perturbation for a non linear buckling analysis.

Other softwares can take the node location of the buckled mode shape and remesh to induce a

perturbation in the column to get the bucklign started in a nonlinear analysis.

If anyone has a literature reference for another method of inducing the perturbation, say by a force.

that would be helpful as well.

Thanks,

Steve

Hi Steve,

Interesting question. I don't think it is possible in SW Sim unless you apply a force that activates the buckling in the desired direction. Maybe you could try to check the eigenfreq in a frequency study. Buckling should occur when the eigenfreq is equal to zero. Would be trial and error though.

I cant help you with literature.

Janko Stellaard

Cadmes BV

The Netherlands