A 50m steel tape is used to measure the distance of the line and found to be 834.25m.During measurement, the tape is supported at the ends and midpoint under a pull of 8 kgand the observed mean temperature is 28 "C. The tape is of standard length at 22 "C and atension of 12 kg. The cross section area of the tape is 0.034cm'. The coefficient of thethermal expansion is 0.0000116/"C and the modulus of elasticity of steel is 2.0x10°kg/cm' thetape weighs 1.4kg. Determine the correct length of the tape.Rules:

Answered: Image /qna-images/answer/2dafb80c-99f8-4bb6-b24e-f6bf8b8a1948.jpg

Answered: A 50m steel tape is used to measure the…

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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Q2)A filament 0.5m long and having a cross-sectional area of 1mm2 was stretched to breaking. If the breaking stress for the filament was found to be 109 Pa, calculate the mass which was hung on the filament to break it. Assuming the filament stretched linearly up to breaking, calculate the amount by which the filament stretched. (Young’s modulus for the material = 6 x 1010 Pa) If the assumption in (b) was justified, what might the material have been? State in one word.
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Q8: Consider a steel rod of fixed ends. If the temperature of the rod is increased by AT-80 °C, then the generated thermal stress (in MPa) in the rod is: (Hint: For the steel, the Young's modulus (Y) is 2x10 N/m and the coefficient of linear thermal expansion (a) is 11 x 106 ly a) 2.2 b) 176.0 c) 352 d) 776.6

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