Table Of Contents:
Application Sidebars xiv

Basic Concepts 1(28)

Introduction: Catastrophic Failures 1(5)

Fundamental Quantities: Units 6(1)

SI Style and Usage 7(1)

Conversion of Units 7(1)

Numerical Computations 8(2)

Trigonometric Functions 10(5)

Trigonometric Formulas 15(4)

Linear Equations and Determinants 19(10)

Resultant of Concurrent Forces in a Plane 29(16)

Introduction 29(1)

Graphical Representation of Forces: Vectors 29(1)

Resultant of Two Concurrent Forces: Vectors 29(4)

Resultant of Three or More Concurrent Forces 33(2)

Components of a Force Vector 35(3)

Resultant of Concurrent Forces by Rectangular Components 38(3)

Difference of Two Forces: Vector Differences 41(4)

Equilibrium of Concurrent Forces in a Plane 45(19)

Conditions for Equilibrium 45(1)

Action and Reaction 45(1)

Space Diagram, Free-Body Diagram 46(1)

Construction of a Free-Body Diagram 46(6)

Three Concurrent Forces in Equilibrium 52(5)

Four or More Forces in Equilibrium 57(1)

Equilibrium by Rectangular Component Method 58(6)

Resultant of Nonconcurrent Forces in a Plane 64(17)

Introduction 64(1)

Transmissibility 64(1)

Moment of a Force 65(1)

Theorem of Moments 65(5)

Resultant of Parallel Forces 70(2)

Resultant of Nonparallel Forces 72(3)

Moment of a Couple 75(1)

Resolution of a Force into a Force and Couple 76(2)

Resultant of Distributed Loading 78(3)

Equilibrium of a Rigid Body 81(20)

Introduction 81(1)

Support Conditions for Bodies in a Plane 81(1)

Construction of Free-Body Diagrams 82(3)

Equations for Equilibrium of a Rigid Body 85(9)

Equilibrium of a Two-Force Body 94(1)

Equilibrium of a Three-Force Body 94(4)

Statical Determinacy and Constraint of a Rigid Body 98(3)

Force Analysis of Structures and Machines 101(43)

Introduction 101(1)

Simple Plane Trusses 101(2)

Members Under Special Loading 103(2)

Method of Joints 105(9)

Graphical Method of Joints 114(1)

Method of Sections 114(5)

Frames and Machines 119(11)

Cables 130(14)

Forces in Space 144(19)

Introduction 144(1)

Components of a Force in Space 144(2)

Resultant of Concurrent Forces in Space 146(2)

Equilibrium of a Concurrent Force System in Space 148(6)

Moment of a Force About an Axis 154(1)

Resultant of Parallel Forces in Space 155(1)

Support Conditions for Bodies in Space 156(1)

Equilibrium of a Rigid Body in Space 157(6)

Friction 163(17)

Introduction 163(1)

Dry or Coulomb Friction 163(1)

Angle of Friction 164(5)

Wedges 169(1)

Square-Threaded Screws: Screw Jacks 170(3)

Axle Friction: Journal Bearings 173(2)

Special Applications 175(2)

Rolling Resistance 177(3)

Center of Gravity, Centroids, and Moments of Inertia of Areas 180(33)

Introduction 180(1)

Center of Gravity 180(1)

Centroid of a Plane Area 181(1)

Centroids by Inspection 182(1)

Centroids of Composite Areas 183(2)

Centroids of Structural Cross Sections 185(7)

Moment of Inertia of a Plane Area 192(3)

Parallel-Axis Theorem 195(1)

Moment of Inertia of Composite Areas 196(9)

Polar Moment of Inertia 205(1)

Radius of Gyration 206(1)

Determination of Centroids by Integration 206(3)

Determination of Moments of Inertia by Integration 209(4)

Internal Reactions: Stress for Axial Loads 213(27)

Introduction 213(1)

Internal Reactions 213(6)

Stress 219(1)

Stress in an Axially Loaded Member 220(3)

Average Shear Stress 223(1)

Bearing Stress 223(4)

Problems Involving Normal, Shear, and Bearing Stress 227(5)

Allowable Stress, Factor of Safety 232(4)

Further Analysis of Axial Loads: Stresses on Oblique Sections 236(4)

Strain for Axial Loads: Hooke's Law 240(27)

Axial Strain 240(1)

Tension Test and Stress-Strain Diagram 241(3)

Hooke's Law 244(3)

Axially Loaded Members 247(4)

Statically Indeterminate Axially Loaded Members 251(4)

Poisson's Ratio 255(1)

Thermal Deformation: Thermally Induced Stress 256(2)

Additional Mechanical Properties of Materials 258(3)

Strain and Stress Distributions: Saint-Venant's Principle 261(1)

Stress Concentrations 262(3)

Repeated Loading, Fatigue 265(2)

Shear Stresses and Strains: Torsion 267(17)

Introduction 267(1)

Shearing Stress on Planes at Right Angles 267(1)

Shearing Strains 268(1)

Hooke's Law for Shear 268(1)

Torsion of a Circular Shaft 268(2)

Further Comments on the Torsion of a Circular Shaft 270(1)

Problems Involving Deformation and Stress in a Circular Shaft 271(3)

Torsion Test 274(1)

Power Transmission 274(5)

Flange Couplings 279(5)

Shear Forces and Bending Moments in Beams 284(21)

Introduction 284(1)

Types of Beams 284(1)

Beam Reactions 285(1)

Shear Forces and Bending Moments in Beams 286(5)

Shear-Force and Bending-Moment Diagrams 291(3)

Relations Among Loads, Shear Forces, and Bending Moments 294(11)

Bending and Shearing Stresses in Beams 305(48)

Introduction 305(1)

Pure Bending of a Symmetric Beam 305(1)

Deformation Geometry for a Symmetric Beam in Pure Bending 306(1)

Hooke's Law: Distribution of Bending Stress 307(1)

Bending Stress Formula: Flexure Formula 307(1)

Elastic Section Modulus 308(1)

Problems Involving the Bending Stress Formula 308(8)

Shearing Stress in Beams 316(1)

Horizontal Shearing Stress Formula 316(8)

Shear Flow Formula 324(3)

Design of Beams for Strength 327(9)

Residential Design Using Tabulated Values 336(17)

Deflection of Beams Due to Bending 353(47)

Introduction 353(1)

Bending-Moment Diagram by Parts 353(6)

Moment-Area Method 359(3)

Deflection of a Cantilever Beam by the Moment-Area Method 362(4)

Deflection of the Simply Supported Beam by the Moment-Area Method 366(5)

Superposition Method 371(6)

Beam Deflections Using Computer Software 377(5)

Statically Indeterminate Beams by the Superposition Method 382(4)

Deflection of Beams by Integration 386(6)

Singularity Functions 392(8)

Combined Stresses and Mohr's Circle 400(28)

Introduction 400(1)

Axial Forces and Bending Moments 400(8)

Unsymmetric Bending 408(2)

Eccentrically Loaded Members 410(2)

Plane Stress 412(1)

Stress Components on an Oblique Plane 412(1)

Mohr's Circle for Plane Stress 413(2)

Principal Stresses 415(2)

Maximum Shear Stress 417(1)

Axial Stress 418(1)

Biaxial Stress: Thin-Walled Pressure Vessel 419(2)

Pure Shear 421(2)

Combined Stress Problems 423(5)

Columns 428(11)

Introduction 428(1)

Euler Column Formula 429(1)

Effective Length of Columns 430(1)

Further Comments on the Euler Column Formula 430(2)

Tangent Modulus Theory 432(1)

Empirical Column Formulas: Design Formulas 433(6)

Bolted, Riveted, and Welded Structural Connections 439(14)

Introduction 439(1)

Rivets and Bolts 439(1)

Methods of Failure for Bolted Joints 439(3)

Axially Loaded Bolted and Riveted Connections 442(3)

Shear Connections for Building Frames 445(3)

Welds 448(1)

Axially Loaded Welds 448(5)
Appendix 453(36)
Answers to Even-Numbered Problems 489(8)
Index 497