Solve the following problem:
Determine the maximum tip load P that can be applied to the beam of Example 1, before the bottom flange buckles. Assume the flange to be simply supported on the webs, which gives a conservative answer.
Example 1:
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.