A metal bar of length 100 mm is inserted betweenincreased by 10°C. If the coefficient of thermalexpansion is 12 × 106 per °C and the Young'stwo rigid supports and its temperature isincreased by 10°C. If the coefficient of thermalexpansion is 12 × 10-6 per °C and the Youna'smodulus is 2 x105 MPa, the stress in the bar is(a) zero(c) 24 MPa(b) 12 MPa(d) 2400 MPa

Given data : Coefficient of thermal expansion (α)=12×10-6 per ∘CYoungs Modulus (E)=2×105…

Answered: increased by 10°C. If the coefficient…

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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Two similar bars of Steel and Aluminium are heated to a same temperature. Forces are applied at the ends of the bars to maintain their lengths unaltered. If the ratio of Young's moduli of Steel and Aluminium is 3, and the ratio of the coefficients of thermal expansion of Steel to that of Aluminium is 0.5, what is the stress on the Aluminium bar if the stress on the Steel bar is 100 MPa?
A metal bar of length 100 mm is inserted between two rigid supports and its temperature is increased by 10°C. If the coefficient of thermal expansion is 12 x 10-6 per °C and the Young's modulus is 2 x 105 MPa, the stress in the bar is
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19 The general formula of thermal stress is c oefficient of linear expansion multiplied b y change in temperature multiplied by mo dulus of rigidity.( 20 True False The area coefficient of thermal expansion is equal to two times the value of linear c oefficient of expansion.( O True O False

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increased by 10°C. If the coefficient of thermal A metal bar of length 100 mm is inserted between expansion is 12 × 10-6 per °C and the Young's two rigid supports and its temperature is (a) zero (c) 24 MPa modulus is 2 x 105 MPa, the stress in the bar is (b) 12 MPa (d) 2400 MPa