H.W 1A 6 m long hollow bar of circular section has 140 mm diameter for a lengthof 4 m, while it has 120 mm diameter for a length of 2 m. The bore diameter is 80 mm throughoutas shown in Fig.140 80300 kN +300 kN80 1204 m2 mFind the elongation of the bar, when it is subjected to an axial tensile force of 300 kN. Takemodulus of elasticity for the bar material as 200 GPa.

GivenLoad, P=300kN=300×103NModulus of Elasticity=200GPa=200×109 Nm2=200×103 Nmm2Elongation, δl=?For…

H.W 1 A 6 m long hollow bar of circular section has 140 mm diameter for a length of 4 m, while it has 120 mm diameter for a length of 2 m. The bore diameter is 80 mm throughout as shown in Fig. B C 140 80 300 kN+ 300 kN 80 120 IT - 2 m – 4 m Find the elongation of the bar, when it is subjected to an axial tensile force of 300 kN. Take modulus of elasticity for the bar material as 200 GPa.

H.W 1 A 6 m long hollow bar of circular section has 140 mm diameter for a length of 4 m, while it has 120 mm diameter for a length of 2 m. The bore diameter is 80 mm throughout as shown in Fig. B C 140 80 300 kN+ 300 kN 80 120 IT - 2 m – 4 m Find the elongation of the bar, when it is subjected to an axial tensile force of 300 kN. Take modulus of elasticity for the bar material as 200 GPa.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.6P: The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular...

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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

H.W 1
A 6 m long hollow bar of circular section has 140 mm diameter for a length
of 4 m, while it has 120 mm diameter for a length of 2 m. The bore diameter is 80 mm throughout
as shown in Fig.
140 80
300 kN +
300 kN
80 120
4 m
2 m
Find the elongation of the bar, when it is subjected to an axial tensile force of 300 kN. Take
modulus of elasticity for the bar material as 200 GPa.

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