A 3D printed polymer rod measures 185.00 mm in length while on the heated print bed at 63.7°C. After cooling to room temperature at 21.5°C the rod measures 184.27 mm in length. Determine the coefficient of thermal expansion of the polymer.

An upward load is applied to a square rod that has a width of 10.16 mm. The rod is connected to the ground using a pin that has a diameter of 9.39 mm. If the normal stress in the rod is limited to 130 MPa and the average shear stress in the pin is limited to 140 MPa, determine the maximum load that can be applied to this connection.

If a load of P = 19 kN is applied to rod (2), determine the magnitude of the resultant force at C. Let a = 0.47 m and b = 0.73 m.

A load of P = 12,400 lb is applied to the connection. If the average shear stress in the bolts is limited to 33 ksi and the required factor of safety is 1.8, determine the minimum allowable bolt diameter.

If rod (1) elongates 0.359 mm and rod (2) elongates 0.473 mm, determine how far downward E moves. Let a = 0.34 m and b = 0.83 m.

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 = 20 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 = 0.28 m, E1 = 192 GPa, A1 = 0.0012 m2L2 = 0.42 m, E2 = 210 GPa, A2 = 0.0005 m2L3 = 0.38 m, E3 = 108 GPa, A3 = 0.0015 m2

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 110 kN is applied to the assembly at A, two loads Q = 30 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 = 0.28 m, E1 = 190 GPa, A1 = 0.0012 m2L2 = 0.42 m, E2 = 210 GPa, A2 = 0.0003 m2L3 = 0.38 m, E3 = 104 GPa, A3 = 0.0016 m2

If the length of a timber [E = 1,700 ksi] column cannot change by more than 0.040 in., determine the maximum load P that can be applied to the column. Let b = 4.25 in., d = 9.00 in., and L = 118 in.

An aluminum bar with a 1.50-in. gage length, 0.180-in. width, and 0.095-in. thickness is loaded in tension. At the proportional limit, a load of 740 lb elongates the gage length by 0.00639 in. and reduces the width by 0.00022 in. Determine the Poisson’s ratio.

An upward load is applied to a square rod that has a width of 10.69 mm. The rod is connected to the ground using a pin that has a diameter of 9.83 mm. If the normal stress in the rod is limited to 160 MPa and the average shear stress in the pin is limited to 200 MPa, determine the maximum load that can be applied to this connection.