A two-step bar with a hollow steel rod, 15 mm in outer diameter and 10 mm in inner diameter and 400 m long, is rigidly attached to solid steel rod of 30 mm in diameter and 600 mm long, as shown in Figure 1. The combination is subjected to three external loads. Given the modulus of steel, Esel is 200 GPa. a) Determine the internal force acting on each of section, with the aid of respective free body diagrams. Also, identify whether the force is tensile or compressive. b) Determine the total change in length of the composite rod. 500KN +300kN + 200kN 300 mm 300 mm 400 mm Figure 1

A two-step bar with a hollow steel rod, 15 mm in outer diameter and 10 mm in inner diameter and 400 m long, is rigidly attached to solid steel rod of 30 mm in diameter and 600 mm long, as shown in Figure 1. The combination is subjected to three external loads. Given the modulus of steel, Esel is 200 GPa. a) Determine the internal force acting on each of section, with the aid of respective free body diagrams. Also, identify whether the force is tensile or compressive. b) Determine the total change in length of the composite rod. 500KN +300kN + 200kN 300 mm 300 mm 400 mm Figure 1

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 two-step bar with a hollow steel rod, 15 mm in outer diameter and 10 mm in inner diameter and 400 m long,
is rigidly attached to solid steel rod of 30 mm in diameter and 600 mm long, as shown in Figure 1. The
combination is subjected to three external loads. Given the modulus of steel, Esel is 200 GPa.
a) Determine the internal force acting on each of section, with the aid of respective free body diagrams.
Also, identify whether the force is tensile or compressive.
b) Determine the total change in length of the composite rod.
500KN
+300kN
+ 200kN
300 mm
300 mm
400 mm
Figure 1

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