A 3D printed polymer rod measures 157.00 mm in length while on the heated print bed at 51.9°C. After cooling to room temperature at 22.0°C the rod measures 156.66 mm in length. Determine the coefficient of thermal expansion of the polymer.

Two pieces of high-density polyethylene [E = 0.92 GPa] tubing are fitted together and firmly clamped at their ends. A load of 116 N is applied to the fitting. Tube (1) is 150 mm long, and tube (2) is 100 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 (2).

A steel [E = 195 GPa] rod with a circular cross section is used as a weight hanger. The straight part of the rod is 165 mm long. Determine the minimum diameter D required if this portion of the rod must hold a tensile load of 12.0 N without stretching more than 0.00520 mm.

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 = 50 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 = 0.44 m, E2 = 208 GPa, A2 = 0.0004 m2L3 = 0.38 m, E3 = 110 GPa, A3 = 0.0016 m2

A load of P = 380 lb is applied to beam ABC. Bar (1) has a square cross section with a width of 1.05 in. If the normal stress in bar (1) is limited to 12 ksi, determine the factor of safety for bar (1). Let a = 35 in., b = 15 in., and c = 8 in.

A short column is composed of two steel [E = 30,000 ksi, ν = 0.30] segments, each with a length of 5.6 in. Segment (1) is hollow with an outside diameter of 1.20 in. and a wall thickness of 0.15 in. Segment (2) is hollow with an outside diameter of 1.50 in. and a wall thickness of 0.15 in. How much shorter does the column become after a load of P = 710 lb is applied?

A short column is composed of two steel [E = 31,000 ksi, ν = 0.29] segments, each with a length of 5.7 in. Segment (1) is hollow with an outside diameter of 1.30 in. and a wall thickness of 0.14 in. Segment (2) is hollow with an outside diameter of 1.58 in. and a wall thickness of 0.14 in. How much shorter does the column become after a load of P = 670 lb is applied?

A load of P = 320 lb is applied to beam ABC. Bar (1) has a square cross section with a width of 0.95 in. If the normal stress in bar (1) is limited to 14 ksi, determine the factor of safety for bar (1). Let a = 29 in., b = 14 in., and c = 8 in.

A load of P = 740 lb is applied to beam ABC. Bar (1) is made of aluminum [E = 10,200 ksi] and has a square cross section with a width of 1.15 in. Determine the magnitude of the change in length of bar (1) due to the load. Let a = 32 in., b = 13 in., and c = 11 in.

A steel [E = 195 GPa] rod with a circular cross section is used as a weight hanger. The straight part of the rod is 130 mm long. Determine the minimum diameter D required if this portion of the rod must hold a tensile load of 11.0 N without stretching more than 0.00310 mm.