(Answered): 3. Calculate the Euler buckling load for a pin-connected 8 in. diameter standard-weight steel pipe ...

3. Calculate the Euler buckling load for a pin-connected 8 in. diameter standard-weight steel pipe column for the following lengths a) 50ft b) 35ft c) 20ft d) 15 ft The proportional limit is 34,000 psi. 4. A pin-connected axially loaded steel bar is used as a compression member. The bar has a rectangular cross section 1 in. by 2 in. The proportional limit is 30,000 psi Calculate a) the minimum length L for Euler's formula to be applicable the critical stress and the critical load if the length of the bar is 5 ft. b)