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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.

Two pieces of high-density polyethylene [E = 0.85 GPa] tubing are fitted together and firmly clamped at their ends. A load of 162 N is applied to the fitting. Tube (1) is 150 mm long, and tube (2) is 90 mm long. Both tubes have an outsider diameter of 23.0 mm and an inside diameter of 17.6 mm. Determine the load carried by tube (1).

If the double-shear pin at D has a diameter of 0.540 in., an allowable shear strength of 10 ksi, and a factor of safety of 2.2, determine the maximum load P that can be applied to beam ABC. Let a = 36 in., b = 16 in., and c = 9 in.

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.

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 120 kN is applied to the assembly at A, two loads Q = 30 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 = 0.20 m, E1 = 194 GPa, A1 = 0.0012 m2L2 = 0.48 m, E2 = 202 GPa, A2 = 0.0005 m2L3 = 0.36 m, E3 = 104 GPa, A3 = 0.0016 m2

Two pieces of high-density polyethylene [E = 0.94 GPa] tubing are fitted together and firmly clamped at their ends. A load of 164 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 22.0 mm and an inside diameter of 16.8 mm. Determine the load carried by tube (2).

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 90 kN is applied to the assembly at A, two loads Q = 20 kN are applied at B, and two loads R = 150 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.26 m, E1 = 192 GPa, A1 = 0.0012 m2L2 = 0.40 m, E2 = 210 GPa, A2 = 0.0005 m2L3 = 0.36 m, E3 = 104 GPa, A3 = 0.0016 m2

A steel [E = 210 GPa] rod with a circular cross section is used as a weight hanger. The straight part of the rod is 140 mm long. Determine the minimum diameter D required if this portion of the rod must hold a tensile load of 7.8 N without stretching more than 0.00160 mm.

If the double-shear pin at D has a diameter of 0.575 in., an allowable shear strength of 20 ksi, and a factor of safety of 2.1, determine the maximum load P that can be applied to beam ABC. Let a = 34 in., b = 12 in., and c = 9 in.

Two pieces of high-density polyethylene [E = 0.88 GPa] tubing are fitted together and firmly clamped at their ends. A load of 141 N is applied to the fitting. Tube (1) is 145 mm long, and tube (2) is 90 mm long. Both tubes have an outsider diameter of 21.0 mm and an inside diameter of 16.0 mm. Determine the load carried by tube (1).