The compound steel bar shown in Fig. Q1(b) made of three uniform segments marked as 1, 2 and 3 of diameters 30mm, 20mm and 10mm respectively, is loaded as shown. (b) 30 mm 20 mm 10 mm 80 kN 40 kN + - 25 kN 2 m 1m Fig.Q1(b): Compound Bar (i) Draw the Free Body Diagram for each of the segments 1, 2 and 3 and mark the force at the ends in each segment. (ii) Determine the stress in each segment. If the Young's modulus for steel is 210 GNM², calculate the overall change in length of the bar. (ii)

The compound steel bar shown in Fig. Q1(b) made of three uniform segments marked as 1, 2 and 3 of diameters 30mm, 20mm and 10mm respectively, is loaded as shown. (b) 30 mm 20 mm 10 mm 80 kN 40 kN + - 25 kN 2 m 1m Fig.Q1(b): Compound Bar (i) Draw the Free Body Diagram for each of the segments 1, 2 and 3 and mark the force at the ends in each segment. (ii) Determine the stress in each segment. If the Young's modulus for steel is 210 GNM², calculate the overall change in length of the bar. (ii)

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

The compound steel bar shown in Fig. Q1(b) made of three uniform
segments marked as 1, 2 and 3 of diameters 30mm, 20mm and 10mm
respectively, is loaded as shown.
(b)
30 mm
20 mm
10 mm
80 kN
40 kN +
- 25 kN
2 m
1m
Fig.Q1(b): Compound Bar
(i)
Draw the Free Body Diagram for each of the segments 1, 2
and 3 and mark the force at the ends in each segment.
(ii)
Determine the stress in each segment.
If the Young's modulus for steel is 210 GNM², calculate the
overall change in length of the bar.
(ii)

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