A steel bar is 2 m long at room temperature 35°C and is then heated to 85°C. The coefficient of thermal expansion is a = 14x10-6 m/m/°C. Determine the change in length of the bar if it is free to expand.O a. 1.68x10-3 mO b. 1.40x10-3 mO. 1.05x10-3 mO d. 2.07x10-3 m

Answered: A steel bar is 2 m long at room…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Deformation.
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1.31 A steel rod, which is free to move, has a length of 200 mm and diameter of 20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C, determine the length and the diameter of this rod to the nearest micron at the new temperature if the linear coefficient of thermal expansion of steel is 12.5 x 10° m/m/°C. Is there a stress on the rod at 115°C?

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A steel bar is 2 m long at room temperature 35°C and is then heated to 85°C. The coefficient of thermal expansion is a = 14x10-6 m/m"C. Determine the change in length of the bar if it is free to expand.