5) A 12 mm diameter bar of steel 15 m length at 20°C is subjected to rise in temperature of 180°C. Taking E = 2 x 10$ N/mm² and coefficient of linear expansion as 12 x 10/°C. Find: %3D The free expansion of the bar. b. The temperature stress, when the expansion of the bar is prevented. c. The temperature stress, when the expansion of the bar is partially allowed by 6 mm. a. (a. 28.8 mm, b. 384 N/mm², c. 304 N/mm²)
5) A 12 mm diameter bar of steel 15 m length at 20°C is subjected to rise in temperature of 180°C. Taking E = 2 x 10$ N/mm² and coefficient of linear expansion as 12 x 10/°C. Find: %3D The free expansion of the bar. b. The temperature stress, when the expansion of the bar is prevented. c. The temperature stress, when the expansion of the bar is partially allowed by 6 mm. a. (a. 28.8 mm, b. 384 N/mm², c. 304 N/mm²)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A 12 mm diameter har of steel 15 m length at 20C is subjected to rise in temperature of 180 C Taking E= 2x 10 n/mm^2 and coefficient of linear expansion as 12 x 10/"C Find:
A. The free expansion of the bur.
b. The temperature stress, when the expansion of the bar in prevented The temperature stress, when the expansion of the bur is partially allowed by 6 mm.
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