A 3D printed polymer rod measures 177.00 mm in length while on the heated print bed at 65.5°C. After cooling to room temperature at 21.0°C the rod measures 176.39 mm in length. Determine the coefficient of thermal expansion of the polymer.

A 3D printer is used to create a shock absorbed composed of two polymers. Polymer (1) [E = 220 ksi] has a cross-sectional area of 1.7 in.2. Polymer (2) [E = 180 ksi] has a cross-sectional area of 1.7 in.2. After the shock absorber is loaded between steel plates by load P = 880 lb, determine the load carried by polymer (1).

If the normal stress in rod (1) is limited to 220 MPa and the required factor of safety is 2.5, determine the maximum load P that can be applied to rod (2). Let a = 0.36 m, b = 0.70 m, and the cross-sectional area of rod (1) be 280 mm2.

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 = 190 GPa, A1 = 0.0014 m2L2 = 0.40 m, E2 = 212 GPa, A2 = 0.0005 m2L3 = 0.36 m, E3 = 108 GPa, A3 = 0.0016 m2

If the length of a timber [E = 1,600 ksi] column cannot change by more than 0.035 in., determine the maximum load P that can be applied to the column. Let b = 6.00 in., d = 8.25 in., and L = 96 in.

A 3D printer is used to create a shock absorbed composed of two polymers. Polymer (1) [E = 260 ksi] has a cross-sectional area of 2.0 in.2. Polymer (2) [E = 220 ksi] has a cross-sectional area of 2.0 in.2. After the shock absorber is loaded between steel plates by load P = 500 lb, determine the load carried by polymer (2).

If a load of P = 9 kN is applied to rod (2), determine the magnitude of the resultant force at C. Let a = 0.49 m and b = 0.70 m.

A 3D printed polymer rod measures 150.00 mm in length while on the heated print bed at 52.9°C. After cooling to room temperature at 20.6°C the rod measures 149.54 mm in length. Determine the coefficient of thermal expansion of the polymer.

A load of P = 12,100 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 the length of a timber [E = 1,700 ksi] column cannot change by more than 0.020 in., determine the maximum load P that can be applied to the column. Let b = 5.00 in., d = 8.50 in., and L = 98 in.