A stepped bar made of aluminum is held between two supports. The bar is 900 mm in length at 38 degree C, 600 mm of which is having a diameter of 50 mm, while the rest is of 25 mm diameter. Determine the thermal stress in the part of the bar with 25 mm diameter when the when the supports move towards each other by 0.1mm. temperature falls to 21 degree Assume for aluminum = 74 KN/mm^2 a for aluminum = 23 4 x 1O^4 /K *

A stepped bar made of aluminum is held between two supports. The bar is 900 mm in length at 38 degree C, 600 mm of which is having a diameter of 50 mm, while the rest is of 25 mm diameter. Determine the thermal stress in the part of the bar with 25 mm diameter when the when the supports move towards each other by 0.1mm. temperature falls to 21 degree Assume for aluminum = 74 KN/mm^2 a for aluminum = 23 4 x 1O^4 /K *

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

A stepped bar made of aluminum is held between two supports. The bar is 900 mm in length
at 38 degree C, 600 mm of which is having a diameter of 50 mm, while the rest is of 25 mm
diameter. Determine the thermal stress in the part of the bar with 25 mm diameter when the
temperature falls to 21 degree C, when the supports move towards each other by 0.1mm.
Assume E for aluminum = 74 kN/mm^2, a for aluminum = 23.4 x 10^4 /K. * ,

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