Rigid beam ABC supports two rods that initially have no stra…

Rigid beam ABC supports two rods that initially have no strain. If a temperature increase in rod (1) creates a normal strain of 2,349 μin./in. in it, determine the normal strain in rod (2). The initial lengths are a = 9 in., b = 16 in., c = 31 in., and d = 8 in. Assume there is no slack in the connections.

A steel [E = 200 GPa; ν = 0.3; α = 11.4 ×10-6/°C] plate has…

A steel [E = 200 GPa; ν = 0.3; α = 11.4 ×10-6/°C] plate has a rectangular hole at its center and four circular holes at the corners. At an initial temperature of Ti = –12°C, the plate is 90 mm wide, 125 mm long, and 18 mm thick. The rectangular hole is 25 mm wide and 75 mm long. The circular holes have a diameter of 19 mm. At a final temperature of Tf = 45°C, determine the length of the rectangular hole.