Mechanical Science for Technicians - 2nd Edition - ISBN: 9780713135114, 9781483183305

Mechanical Science for Technicians

2nd Edition

Volume 1

Authors: Ian McDonagh
eBook ISBN: 9781483183305
Imprint: Arnold
Published Date: 1st January 1984
Page Count: 160
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Mechanical Science for Technicians, Volume 1, Second Edition focuses on the understanding of mechanical engineering and analytical approaches to solutions of problems involving deformation of materials, dynamics, and fluid flow. The monograph first elaborates on stress, strain, elasticity, and shear force and bending moment and stress. Discussions focus on the relationship between bending stress and external bending moment, assumptions made in the simple theory of bending, geometrical properties of plane sections, stress and strain in composite bars, and the effect of temperature change on composite bars. The manuscript then takes a look at the torsion of circular shafts, including torsion of hollow circular shafts, shear stress and angle of twist, and the relationship between shear stress and external torque. The text examines angular motion, kinetic energy, simple oscillations, and fluids in motion. Topics include pressure, kinetic, and potential energy, effect of approach velocity on flow through an orifice, oscillations of a simple pendulum, rotational or angular kinetic energy, and equations of uniform angular motion. The monograph is a valuable reference for engineers and researchers interested in mechanical engineering.

Table of Contents


1 Stress, Strain, and Elasticity

Types of Force

Direct Stress


Modulus of Elasticity

Stress and Strain in Composite Bars

Stresses Due to Temperature Change

Effect of Temperature Change on Composite Bars

Shear Stress

Shear Strain

Shear Modulus

Poisson's Ratio

Two-Dimensional Stress

2 Shear Force, Bending Moment, and Bending Stress


Equilibrium of Beams

Beam Reactions

Shear Force and Shear-Force Diagrams

Bending Moment and Bending-Moment Diagrams

Relationship Between Loading, Shear-Force, and Bending-Moment Diagrams

Geometrical Properties of Plane Sections

Assumptions Made in the Simple Theory of Bending

Distribution of Bending Stress

Position of the Neutral Axis

Relationship Between Bending Stress and External Bending Moment

Section Modulus

Tables of Properties

3 Torsion of Circular Shafts

Assumptions Made in the Simple Theory of Torsion

Shear Stress and Angle of Twist

Relationship Between Shear Stress and External Torque

Torsion of Hollow Circular Shafts

4 Angular Motion

Equations of Uniform Angular Motion

Torque and Angular Acceleration

Radius of Gyration

Centripetal Acceleration

Centripetal and Centrifugal Force

5 Kinetic Energy


Translatory or Linear Kinetic Energy

Rotational or Angular Kinetic Energy

Total Kinetic Energy of a Body Having Both Linear and Angular Motion

6 Simple Oscillations

Periodic Time and Frequency

Displacement and Amplitude

Simple Harmonic Motion

Free Linear Oscillations of a Mass on a Vertical Spring

Oscillations of a Simple Pendulum. Resonance

7 Fluids in Motion


Pressure Energy

Kinetic Energy

Potential Energy

Bernoulli's Equation

Factional Resistance to Flow

Continuity Equation

Applications of the Bernoulli and Continuity Equations

Flow through an Orifice

Effect of Approach Velocity on Flow Through an Orifice

Momentum of a Jet


Force of a Jet on a Flat Plate



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© Arnold 1984
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About the Author

Ian McDonagh

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