3.1 Calculate the maximum stress in the bars if the temperature is raised to ...
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At room temperature (20 °C), there is a 0.38 mm gap between the ends of a copper and an aluminium rod, respectively, as shown in the figure. The copper rod is conical with an outer diameter that changes from 25 mm to 50 mm over 200 mm. The aluminium rod has a constant outer diameter of 25 mm over 250 mm. |
3.1 Calculate the maximum stress in the bars if the temperature is raised to 184 °C. (3 significant figures)
Note that the maximum stress is the largest compressive or tensile strength. Use typical sign convention of a positive value for a tensile stress.
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