A steel plate has a rectangular hole at its center and four circular holes at the corners. At an initial temperature of Ti = –20°C, the plate is 80 mm wide, 145 mm long, and 11 mm thick. The rectangular hole is 25 mm wide and 65 mm long. The circular holes have a diameter of 24 mm. At a final temperature of Tf = 46°C, determine the width of the rectangular hole.

Rigid beam ABC supports two rods that initially have no strain. If a temperature increase in rod (1) creates a normal strain of 3,045 μin./in. in it, determine the normal strain in rod (2). The initial lengths are a = 8 in., b = 15 in., c = 34 in., and d = 9 in. Assume there is no slack in the connections.

A triangular piece of rubber is stretched causing A to move downward. Determine the magnitude of the shear strain that occurs at A when a = 31.4 mm, b = 62.8 mm, and c = 42.4 mm.

A Bush’s Best can weighs 1.09 lb and is 2.87 in. in diameter. A Libby’s can weighs 1.18 lb and is 2.97 in. in diameter. What is the largest bearing stress that occurs between the cans and the table? Assume each can has a smooth base and sits flat on the table.

A load of P = 170 lb is applied to beam ABC. Bar (1) has a circular cross section with a diameter of 0.82 in. Determine the normal stress in bar (1). Let a = 36 in., b = 16 in., and c = 10 in.

An aluminum bar with a 1.50-in. gage length, 0.180-in. width, and 0.095-in. thickness is loaded in tension. At the proportional limit, a load of 740 lb elongates the gage length by 0.00639 in. and reduces the width by 0.00022 in. Determine the Poisson’s ratio.

Rigid beam ABC supports two rods that initially have no strain. If a temperature increase in rod (1) creates a normal strain of 2,829 μin./in. in it, determine the normal strain in rod (2). The initial lengths are a = 10 in., b = 16 in., c = 32 in., and d = 10 in. Assume there is no slack in the connections.

Rigid beam ABC supports two rods that initially have no strain. If a temperature increase in rod (1) creates a normal strain of 2,545 μin./in. in it, determine the normal strain in rod (2). The initial lengths are a = 10 in., b = 13 in., c = 38 in., and d = 11 in. Assume there is no slack in the connections.

A load of P = 445 lb is applied to beam ABC. Determine the vertical ground reaction at B. Let a = 34 in., b = 13 in., and c = 8 in.

A Bush’s Best can weighs 1.12 lb and is 2.86 in. in diameter. A Ro-Tel can weighs 0.75 lb and is 2.54 in. in diameter. What is the largest bearing stress that occurs between the cans and the table? Assume each can has a smooth base and sits flat on the table.