Mechanical Engineering Principles

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Mechanical Engineering Principles ...

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Mechanical Engineering Principles JOHN BIRD BSc, CEng, CMath, FIMA, MIEE, FCollP, FIIE CARL ROSS BSc, PhD, DSc, CEng, FRINA, MSN ...

Newnes An imprint of Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 225 Wildwood Avenue, Woburn, MA 01801- A d ...

Contents Preface ix Part 1 Statics and strength of materials 1 1 The effects of forces on materials 1 1.1 Introduction 1 1.2 Ten ...

vi MECHANICAL ENGINEERING PRINCIPLES 8 Bending of beams 103 8.1 Introduction 103 8.2 To prove that σ y = M I = E R 103 8.3 Worke ...

CONTENTS vii - in conserving fuel 19.9 Use of insulation 20 Thermal expansion 20.1 Introduction of thermal expansion 20.2 ...

Preface Mechanical Engineering Principles aims to broaden the reader’s knowledge of the basic principles that are fundamental to ...

Part 1 Statics and strength of materials 1 The effects of forces on materials At the end of this chapter you should be able to: ...

2 MECHANICAL ENGINEERING PRINCIPLES 1.2 Tensile force Tensionis a force that tends to stretch a material, as shown in Figure 1.1 ...

THE EFFECTS OF FORCES ON MATERIALS 3 whereF is the force in Newton’s and Ais the cross-sectional area in square metres. For tens ...

4 MECHANICAL ENGINEERING PRINCIPLES x L Reaction force γ Applied force Figure 1. For a shear force, strain is denoted by the sym ...

THE EFFECTS OF FORCES ON MATERIALS 5 (a) Compressive stress, σ= F A = 40000 N 3. 142 × 10 −^4 m^2 = 12. 73 × 107 Pa=127.3 MPa (b ...

6 MECHANICAL ENGINEERING PRINCIPLES Now try the following exercise Exercise 2 Further problems on strain A wire of length 4.5 m ...

THE EFFECTS OF FORCES ON MATERIALS 7 proportionality a graph of stress/strain will be as shown in Figure 1.8, and is a similar s ...

8 MECHANICAL ENGINEERING PRINCIPLES Whenx=2 mm,F=250 N, thus 2=k( 250 ), from which, constantk= 2 250 = 1 125 Whenx=5 mm, then 5 ...

THE EFFECTS OF FORCES ON MATERIALS 9 When subjected to a compressive force the length of the rod is 199.6 mm. Determine (a) the ...

10 MECHANICAL ENGINEERING PRINCIPLES 40 A 80 120 160 200 240 280 320 360 C B D Extension /mm Load / N 0 246810121416 18 F Figure ...

THE EFFECTS OF FORCES ON MATERIALS 11 by 0.8 mm when carrying a load of 200 kN. [(a) 27.5 mm (b) 68.2 GPa] A metal rod of cross ...