A 5-m rod having a uniform cross-sectional area of 1000 sq.mm. is secured between two walls  5 meters apart. The load on the rod is zero at 27 °C. E = 200 GPa, α = 11.25x10-6 m/m-°C. When  the temperature rises to 57°C: a) What is the stress in the rod assuming that the walls are rigid. b) What is the stress in the rod if the walls spring together a total distance of 0.5 mm

Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter2: Axially Loaded Members
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Problem 2.11.5P: An aluminum bar subjected to tensile Forces P has a length L = 150 in. and cross-sectional area A =...
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A 5-m rod having a uniform cross-sectional area of 1000 sq.mm. is secured between two walls 
5 meters apart. The load on the rod is zero at 27 °C. E = 200 GPa, α = 11.25x10-6 m/m-°C. When 
the temperature rises to 57°C:
a) What is the stress in the rod assuming that the walls are rigid.
b) What is the stress in the rod if the walls spring together a total distance of 0.5 mm

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