Four steel bars jointly support a mass of 25 x 103 kg. Initially the temperature is 250C. Bars A and D have a cross-sectional area of 480 mm2. For bars B and C, the cross-sectional area is 360 mm2. Determine the elongation of bar A when the temperature becomes 600C. Also, find the axial stress developed in bar C. Use E = 200 GPa and α = 11.7 x 10-6 m/ (m0C). 800 mm20⁰60°25000 kgс020

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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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Four steel bars jointly support a mass of 25 x 10³ kg. Initially the temperature is 25⁰C. Bars A and D have a cross-sectional area of 480 mm². For bars B and C, the cross-sectional area is 360 mm². Determine the elongation of bar A when the temperature becomes 60⁰C. Also, find the axial stress developed in bar C. Use E = 200 GPa and α = 11.7 x 10^-6 m/ (m⁰C).

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