the stress compressive. What would be the final temperature when heating starts at 20degC? The E of copper wire is 110GPa, the original stress was 70MPa and the coefficient of linear expansion is 1.7x10-7/degC. 39degC 19degC 1degC 20degC

the stress compressive. What would be the final temperature when heating starts at 20degC? The E of copper wire is 110GPa, the original stress was 70MPa and the coefficient of linear expansion is 1.7x10-7/degC. 39degC 19degC 1degC 20degC

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

Section: Chapter Questions

Problem 2.5.1P: The rails of a railroad track are welded together at their ends (to form continuous rails and thus...

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kindly help me with this problem choose the correct answer

The copper wire was subjected to heat to reduce its stress level by half, making
the stress compressive. What would be the final temperature when heating
starts at 20degC? The E of copper wire is 110GPa, the original stress was
70MPa and the coefficient of linear expansion is 1.7x10-7/degC.
39degC
19degC
1degC
O 20degC

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