Analyze Nonlinear WIP

Hello friends
I do not know which algorithm to use in this structure. Dynamic Relaxation , Newton-Raphson Method, Arc-Length Method
And I did not understand the difference between these three algorithms.

0 degree-222.gh (172.2 KB)

Hello @eghbalpourf,
in the case of your structure I would use second order Theory Analysis, since the displacements to be expected are not large with respect to the cross section height. ‘AnalyzeThII’ takes into account buckling but is based on geometric linearity which reduces calculation time.
– Clemens

Hi @karamba3d
Thank you
It is possible to send me the file.
Did you use “AnalyzeThII”?