A 3D printed polymer rod measures 104.00 mm in length while…
A 3D printed polymer rod measures 104.00 mm in length while on the heated print bed at 63.3°C. After cooling to room temperature at 21.7°C the rod measures 103.60 mm in length. Determine the coefficient of thermal expansion of the polymer.
Read DetailsAn upward load is applied to a square rod that has a width o…
An upward load is applied to a square rod that has a width of 10.48 mm. The rod is connected to the ground using a pin that has a diameter of 9.18 mm. If the normal stress in the rod is limited to 150 MPa and the average shear stress in the pin is limited to 155 MPa, determine the maximum load that can be applied to this connection.
Read DetailsA 3D printed polymer rod measures 177.00 mm in length while…
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.
Read DetailsA 3D printer is used to create a shock absorbed composed of…
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).
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