The figure shows a 6 inches long horizontal post labeled 1 on the left fixed to a rigid support on the left at A. A cylindrical rod B C of length 18 inches and labeled 2 is fixed to a rigid support on the right at C. A flange is shown at B. The gap between the post and the flange is one sixteenth of an inch.

The internal force in each of the axial members has been determined:

F1=6.49351 kips=F2

The normal stress in each axial member can now be computed.

σ1=F1A1=6.49351 kips0.60 in.2=10.82 ksi (T)   

and

σ2=F2A2=6.49351 kips0.20 in.2=32.5 ksi (T)   

Finished