Hibbeler Engineering Mechanics Statics 13th Edition

Hibbeler Engineering Mechanics Statics 13th Edition

كتاب الاستاتيكا لهيبلر

R. C. Hibbeler
General Principles 3
XVII
Chapter Objectives 3
1.1 Mechanics 3
1.2 Fundamental Concepts 4
1.3 Units of Measurement 7
1.4 The International System of Units 9
1.5 Numerical Calculations 10
1.6 General Procedure for Analysis 12
Force Vectors 17
Chapter Objectives 17
2.1 Scalars and Vectors 17
2.2 Vector Operations 18
2.3 Vector Addition of Forces 20
2.4 Addition of a System of Coplanar
Forces 32
2.5 Cartesian Vectors 43
2.6 Addition of Cartesian Vectors 46
2.7 Position Vectors 56
2.8 Force Vector Directed Along a Line 59
2.9 Dot Product 69
XVIII  C ONTENTS
Equilibrium of a
Particle 85
Chapter Objectives 85
3.1 Condition for the Equilibrium
of a Particle 85
3.2 The Free-Body Diagram 86
3.3 Coplanar Force Systems 89
3.4 Three-Dimensional Force Systems 103
Force System
Resultants 117
Chapter Objectives 117
4.1 Moment of a Force—Scalar
Formulation 117
4.2 Cross Product 121
4.3 Moment of a Force—Vector
Formulation 124
4.4 Principle of Moments 128
4.5 Moment of a Force about a
Specified Axis 139
4.6 Moment of a Couple 148
4.7 Simplification of a Force and Couple
System 160
4.8 Further Simplification of a Force and
Couple System 170
4.9 Reduction of a Simple Distributed
Loading 183
CONTENTS XIX
Equilibrium of a
Rigid Body 199
Chapter Objectives 199
5.1 Conditions for Rigid-Body
Equilibrium 199
5.2 Free-Body Diagrams 201
5.3 Equations of Equilibrium 214
5.4 Two- and Three-Force Members 224
5.5 Free-Body Diagrams 237
5.6 Equations of Equilibrium 242
5.7 Constraints and Statical Determinacy 243
Structural Analysis 263
Chapter Objectives 263
6.1 Simple Trusses 263
6.2 The Method of Joints 266
6.3 Zero-Force Members 272
6.4 The Method of Sections 280
6.5 Space Trusses 290
6.6 Frames and Machines 294
XX C ONTENTS
Internal Forces 331
Chapter Objectives 331
7.1 Internal Loadings Developed in Structural
Members 331
7.2 Shear and Moment Equations and
Diagrams 347
7.3 Relations between Distributed Load, Shear,
and Moment 356
7.4 Cables 367
Friction 389
Chapter Objectives 389
8.1 Characteristics of Dry Friction 389
8.2 Problems Involving Dry Friction 394
8.3 Wedges 416
8.4 Frictional Forces on Screws 418
8.5 Frictional Forces on Flat Belts 425
8.6 Frictional Forces on Collar Bearings, Pivot
Bearings, and Disks 433
8.7 Frictional Forces on Journal Bearings 436
8.8 Rolling Resistance 438
CONTENTS XXI
Center of Gravity and
Centroid 451
Chapter Objectives 451
9.1 Center of Gravity, Center of Mass, and the
Centroid of a Body 451
9.2 Composite Bodies 474
9.3 Theorems of Pappus and Guldinus 488
9.4 Resultant of a General Distributed
Loading 497
9.5 Fluid Pressure 498
Moments of Inertia 515
Chapter Objectives 515
10.1 Definition of Moments of Inertia for
Areas 515
10.2 Parallel-Axis Theorem for an Area 516
10.3 Radius of Gyration of an Area 517
10.4 Moments of Inertia for Composite
Areas 526
10.5 Product of Inertia for an Area 534
10.6 Moments of Inertia for an Area about
Inclined Axes 538
10.7 Mohr’s Circle for Moments of Inertia 541
10.8 Mass Moment of Inertia 549
XXII  C ONTENTS
Virtual Work 567
Chapter Objectives 567
11.1 Definition of Work 567
11.2 Principle of Virtual Work 569
11.3 Principle of Virtual Work for a System of
Connected Rigid Bodies 571
11.4 Conservative Forces 583
11.5 Potential Energy 584
11.6 Potential-Energy Criterion for
Equilibrium 586
11.7 Stability of Equilibrium Configuration 587
Appendix
A. Mathematical Review and
Expressions602
Fundamental Problems
Partial Solutions and
Answers 606
Answers to Selected
Problems 624
Index
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