Linear buckling analysis cannot be performed if the referential static loading subcase uses inertia relief

gao chen

Linear buckling analysis cannot be performed if the referential static loading subcase uses inertia relief。How to realize linear buckling calculation with  inertia relief

Kranzeder

Dear Gao Chen

Maybe nonlinear analysys using IMPERF could be an option.
You can give it a try.
IMHO
Your load should be above the buckling point to determine the maximum bearable load.

Kind regards Juergen

gao chen

Many thanks for your kind and warm help！