Multi-objective optimization

Hi everyone !

I’m working on a particular type of cross-section for a column and I would to reach a certain defined value of inertia while minimizing the area of the section. I first thought about using Galapagos but as it can optimize only for one objective, it is not appropriate. I also tried using plugins such as Octopus and Wallacei X trying to minimize the area and the difference between the calculated inertia and the defined inertia I wanna have but it never reaches a satisfying solution (many probably exist).

Do you know how I could use Galapagos to minimize the area while keeping unchanged the value of the inertia ? Or do you know how I could solve this problem ? (30.8 KB) (40.4 KB)

It would be amazing, thank you in advance.