To find the critical buckling load of a column with varying moment of inertia
use bcbc2.exe in
conjunction with brun45.exe.
The program uses finite differences.
Ends can be fixed or pinned.
OR
For a free-fixed column, input 'free' for top of column. Program will
automatically fix the bottom.
Any consistent units can be used, but output shows INCHES and KIPS.
There is an input shortcut if the moment of inertia is constant
TO RUN PROGRAM, EXECUTE FILE & FOLLOW ON SCREEN DIRECTIONS.