고체역학 (Gere) — Axially Loaded Members: Problem 2.5-13

2.5-13 Rectangular bars of copper and aluminum are held by pins at their ends, as shown in the figure. Thin spacers provide a separation between the bars. The copper bars have cross-sectional dimensions 12 mm × 50 mm, and the aluminum bar has dimensions 25 mm × 50 mm. Determine the shear stress in the 11 mm diameter pins if the temperature is raised by 40 °C. (For copper, \(E_c = 124 \text{ GPa}\) and \(\alpha_c = 20 \times 10^{-6}/^\circ\text{C}\); for aluminum, \(E_a = 69 \text{ GPa}\) and \(\alpha_a = 26 \times 10^{-6}/^\circ\text{C}\).) Suggestion: Use the results of Example 2-10.