A 3D printed polymer rod measures 110.00 mm in length while on the heated print bed at 50.7°C. After cooling to room temperature at 21.6°C the rod measures 109.77 mm in length. Determine the coefficient of thermal expansion of the polymer.

A load of P = 415 lb is applied to beam ABC. Determine the normal force in bar (1). Let a = 32 in., b = 15 in., and c = 8 in.

A short column is composed of two steel [E = 29,000 ksi, ν = 0.30] segments, each with a length of 5.7 in. Segment (1) is hollow with an outside diameter of 1.00 in. and a wall thickness of 0.10 in. Segment (2) is hollow with an outside diameter of 1.20 in. and a wall thickness of 0.10 in. How much shorter does the column become after a load of P = 550 lb is applied?

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 130 kN is applied to the assembly at A, two loads Q = 40 kN are applied at B, and two loads R = 170 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.22 m, E1 = 190 GPa, A1 = 0.0013 m2L2 = 0.44 m, E2 = 200 GPa, A2 = 0.0004 m2L3 = 0.32 m, E3 = 108 GPa, A3 = 0.0016 m2

Two pieces of high-density polyethylene [E = 0.91 GPa] tubing are fitted together and firmly clamped at their ends. A load of 134 N is applied to the fitting. Tube (1) is 155 mm long, and tube (2) is 100 mm long. Both tubes have an outsider diameter of 21.0 mm and an inside diameter of 15.6 mm. Determine the load carried by tube (1).

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 100 kN is applied to the assembly at A, two loads Q = 20 kN are applied at B, and two loads R = 160 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.26 m, E1 = 196 GPa, A1 = 0.0012 m2L2 = 0.48 m, E2 = 208 GPa, A2 = 0.0004 m2L3 = 0.32 m, E3 = 104 GPa, A3 = 0.0016 m2

A load of P = 780 lb is applied to beam ABC. Bar (1) is made of aluminum [E = 10,300 ksi] and has a square cross section with a width of 0.95 in. Determine the magnitude of the change in length of bar (1) due to the load. Let a = 39 in., b = 15 in., and c = 8 in.

If the double-shear pin at D has a diameter of 0.555 in., an allowable shear strength of 18 ksi, and a factor of safety of 1.5, determine the maximum load P that can be applied to beam ABC. Let a = 39 in., b = 16 in., and c = 9 in.

A 3D printed polymer rod measures 156.00 mm in length while on the heated print bed at 54.8°C. After cooling to room temperature at 21.7°C the rod measures 155.49 mm in length. Determine the coefficient of thermal expansion of the polymer.

A 3D printed polymer rod measures 122.00 mm in length while on the heated print bed at 51.3°C. After cooling to room temperature at 20.0°C the rod measures 121.71 mm in length. Determine the coefficient of thermal expansion of the polymer.