PROBLEM 2.42 A steel tube (E = 200 GPa) with a 32-mm outer diameter and a 4-mm wall thickness is placed in a vise that is adjusted so that its jaws just touch the ends of the tube without exerting any pressure on them. The two forces shown are then applied to the tube. After these forces are applied, the vise is adjusted to decrease the distance between its jaws by 0.2 mm. Determine (a) the forces exerted by the vise on the tube at A and D, (b) the change in length of portion BC of the tube.
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