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A 3D printed polymer rod measures 192.00 mm in length while on the heated print bed at 59.6°C. After cooling to room temperature at 20.1°C the rod measures 191.51 mm in length. Determine the coefficient of thermal expansion of the polymer.

A 31-lb cardboard box sits on an oak beam. Determine the maximum bending moment in the beam if the weight is modeled as distributed load w = 1.1071 lb/in. Let a = 34 in. and b = 28 in.

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 = 40 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 = 0.24 m, E1 = 196 GPa, A1 = 0.0013 m2L2 = 0.48 m, E2 = 214 GPa, A2 = 0.0003 m2L3 = 0.30 m, E3 = 106 GPa, A3 = 0.0015 m2

A load of P = 9,900 lb is applied to the connection. If the average shear stress in the bolts is limited to 32 ksi and the required factor of safety is 2.1, determine the minimum allowable bolt diameter.

If a load of P = 9 kN is applied to rod (2), determine the magnitude of the resultant force at C. Let a = 0.50 m and b = 0.74 m.

A 3D printed polymer rod measures 157.00 mm in length while on the heated print bed at 55.7°C. After cooling to room temperature at 20.5°C the rod measures 156.52 mm in length. Determine the coefficient of thermal expansion of the polymer.

If the normal stress in rod (1) is limited to 270 MPa and the required factor of safety is 2.4, determine the maximum load P that can be applied to rod (2). Let a = 0.46 m, b = 0.68 m, and the cross-sectional area of rod (1) be 80 mm2.

If a load of P = 12 kN is applied to rod (2), determine the magnitude of the resultant force at C. Let a = 0.45 m and b = 0.77 m.

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 = 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 = 0.20 m, E1 = 196 GPa, A1 = 0.0013 m2L2 = 0.44 m, E2 = 212 GPa, A2 = 0.0004 m2L3 = 0.32 m, E3 = 110 GPa, A3 = 0.0016 m2

If a load of P = 12 kN is applied to rod (2), determine the magnitude of the resultant force at C. Let a = 0.30 m and b = 0.67 m.