The (solid) steel shaft (with G = 10.4 × 103 ksi) is made from two segments with different diameters: dAC = 0.5 in and dCB = 1 in. If the shaft is fixed at its ends A and B and subjected to a torque of 500 lb-ft at D, determine the maximum shear stress in the shaft.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.