Solve the following problem:
Determine an approximate estimate for the load P that causes local buckling to a column with the dimensions and material of Example . Assume that the load is uniformly distributed around the perimeter of the cross-section.
Example : Design a box section to be used as a cantilever beam of length L = 2 m subject to a tip load P = 1000 N. Limit the tip deflection δ to 1/300 of the span L of the beam.