after defining the part, go to the module property then select create section then choose beam and after that choose beam shape and the profile type for your section.

Thanks for your answer. But the problem is that the aluminum extruded profiles are unavailable in the "beam shape" !! How can I define it. I need it for Frequency analysis for the aluminum structure.

Mostafa Sohankar Can you share your Abaqus model (.inp)?

Instead of box frame I want to try use 40*40 aluminum extruded profile. But I don't know How!!

Mostafa Sohankar Can you also share a CAD model of the extruded profile?

Hi dear Wanger

Hi dear Nils

Did you manage to find any solution to my challenge?

You can create a partition line to create a section on beam surface and assign .