A bronze bar 3 m long with a cross sectional area of 320 mm2 is placed between two rigid walls as shown in Figure. At a temperature of 0°C, the gap A = 2.5 mm. Find the temperature at which the compressive stress in the bar will be 35 MPa. Use a = 18.0 x 10-6 m/(m-°C) and E %3D = 80 GPa.

A bronze bar 3 m long with a cross sectional area of 320 mm2 is placed between two rigid walls as shown in Figure. At a temperature of 0°C, the gap A = 2.5 mm. Find the temperature at which the compressive stress in the bar will be 35 MPa. Use a = 18.0 x 10-6 m/(m-°C) and E %3D = 80 GPa.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

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Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.11.5P: An aluminum bar subjected to tensile Forces P has a length L = 150 in. and cross-sectional area A =...

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

A bronze bar 3 m long with a cross sectional area of 320 mm2 is placed
L= 3 m
between two rigid walls as shown in Figure. At a temperature of 0°C,
the gap A = 2.5 mm. Find the temperature at which the compressive
stress in the bar will be 35 MPa. Use a = 18.0 x 10-6 m/(m.°C) and E
= 80 GPa.

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