Two L102 × 89 × 9.5 structural steel angles (Appendix C, Table C.3) are welded together to form a box-section. The member is used as a pinned-end column with external dimensions of 102 mm by 98.5 mm and a length of 6.0 m.
a. Determine the slenderness ratio for the column. Assume that the welds are continuous for the full length of the column and that the amount of weld metal is small enough to not affect the cross-sectional area.
b. Verify that Euler's formula applies. That is, verify that the critical stress for the column is less than the yield stress.
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