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2.40 A brass bolt
(Eb = 15 x 106 psi) with a 3/8-in. diameter is
filted inside a steel tube (Et = 29 x 106 psi) with a 7/8-in. outer
diameter and 1/8-in wall thickness. After the nut has been fit snugly, it is
tighened on quarter of a full turn. Knowing that the bolt is single-threaded
with a 0,1-in. pitch, determine the normal stress (a) in the bolt, (b) in the
tube.
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