A 20 mm diameter steel rod passes concentrically through a bronze tube (200+SN) mm long, 50 mm external diameter and 40 mm internal diameter. The ends of the steel rod are threaded and provided with nuts and washers which are adjusted initially so that there is no end play at 25°C. 1. Assuming that there is no change in the thickness of the washers, if the stress produced in the steel is (200+SN) MN/m2 when one of the nuts is tightened, the pitch of the thread being 1 mm. Find the number of turns for the nut and stress in bronze tube.2. If the temperature of the steel and bronze is then raised to 40°C find the changes that will occur in the stresses in both materials. The coefficient of linear expansion per C is 10 x10-6 for steel and 17 x10-6 for bronze. E for steel = 210 GN/m2. E for bronze = 100 GN/m2. Where SN=3

A 20 mm diameter steel rod passes concentrically through a bronze tube (200+SN) mm long, 50 mm external diameter and 40 mm internal diameter. The ends of the steel rod are threaded and provided with nuts and washers which are adjusted initially so that there is no end play at 25°C. 1. Assuming that there is no change in the thickness of the washers, if the stress produced in the steel is (200+SN) MN/m2 when one of the nuts is tightened, the pitch of the thread being 1 mm. Find the number of turns for the nut and stress in bronze tube.2. If the temperature of the steel and bronze is then raised to 40°C find the changes that will occur in the stresses in both materials. The coefficient of linear expansion per C is 10 x10-6 for steel and 17 x10-6 for bronze. E for steel = 210 GN/m2. E for bronze = 100 GN/m2. Where SN=3

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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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 4ll Asiacell
Q2
A 20 mm diameter steel rod passes
concentrically through a bronze tube
(200+SN) mm long, 50 mm external
diameter and 40 mm internal
diameter. The ends of the steel rod
are threaded and provided with nuts
and washers which are adjusted
initially so that there is no end play at
25°C. 1. Assuming that there is no
change in the thickness of the
washers, if the stress produced in the
steel is (200+SN) MN/m2 when one of
the nuts is tightened, the pitch of the
thread being 1 mm. Find the number
of turns for the nut and stress in
bronze tube.2. If the temperature of
the steel and bronze is then raised to
40°C find the changes that will occur
in the stresses in both materials. The
coefficient of linear expansion per C
is 10 x10-6 for steel and 17 x10-6 for
bronze. E for steel = 210 GN/m2. E for
bronze = 100 GN/m2.
Where SN=3
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