The lower end of a pole is a 3m long steel tube. It is joined to a 2.1 m long bronze tube. Compute the total elongation of the composite pole after a 15.15° rise in temperature. The steel part is 50 mm in outside diameter & 3mm thick while the bronze part which fits snugly in the steel tube is 3.2 mm thick. What compressive force is needed to return the pole to its original length? What will be the stresses in the steel & in the bronze after this force is applied? Neglect the length of splive/joint. For steel, use: a = 11.7 x 10-6 m/m, E = 210 GPa; & for bronze; a = 18.9 x 10-6 m/m, E = 83 GPa.

The lower end of a pole is a 3m long steel tube. It is joined to a 2.1 m long bronze tube. Compute the total elongation of the composite pole after a 15.15° rise in temperature. The steel part is 50 mm in outside diameter & 3mm thick while the bronze part which fits snugly in the steel tube is 3.2 mm thick. What compressive force is needed to return the pole to its original length? What will be the stresses in the steel & in the bronze after this force is applied? Neglect the length of splive/joint. For steel, use: a = 11.7 x 10-6 m/m, E = 210 GPa; & for bronze; a = 18.9 x 10-6 m/m, E = 83 GPa.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter6: Introduction To Mechanical Properties

Section: Chapter Questions

Problem 6.2DP

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