A rod consisting of two cylindrical portions AB and BC is restrained
at both ends. Portion AB is made of steel (Es 5 29 3 106 psi,
as 5 6.5 3 1026/8F) and portion BC is made of aluminum
(Ea 5 10.4 3 106 psi, aa 5 13.3 3 1026/8F). Knowing that the rod
is initially unstressed, determine (a) the normal stresses induced
in portions AB and BC by a temperature rise of 708F, (b) the corresponding
deflection of point B.
2.53 Solve Prob. 2.52, assuming that portion AB of the composite rod
is made of aluminum and portion BC is made of steel.