Nonlinear buckling of a cylinder by riks in Abaqus, introducing imperfections from buckle 

THANK YOU VERY MUCH FOR SHARING THIS WORK SIR. THIS HELP ME ALOT.

lets say im targeting a specific value for my imperfection like 20mm and i only want to consider the first mode: should i just divide 20mm by the maximum amplitude displacement result from the buckling analysis and use it as scale factor when editing the keywords ?

Hi. What is the geometric boundary condition of the structure?

Hello, can you please put the model and Abaqus file so we can do this by ourselves? Thank