Engineering Mechanics : Statics

by Boresi, Arthur P.

• ISBN13: 9780534951528
• ISBN10: 053495152X
• Edition: 1st
• Format: Paperback
• Copyright: 2000-04-07
• Publisher: CENGAGE-Engineering

Summary

Arthur Boresi and Richard Schmidt's innovative textbook (and its partner text, ENGINEERING MECHANICS: DYNAMICS) presents mechanics in the most exciting and relevant context possible, with painstaking clarity and accuracy throughout. The authors strive to present the topics thoroughly and directly, with fundamental principles emerging through application to real-world problems. They present the technical principles of mechanics within the framework of a structured learning methodology, enabling students to better understand and retain the material. The integrated use of learning aids throughout the book is based on the authors' experience that students can be taught effective study habits while they learn mechanics.

Author Biography

Arthur P. Boresi is a professor emeritus in the Department of Civil and Architectural Engineering at the University of Wyoming Richard J. Schmidt is a professor in the Department of Civil and Architectural Engineering at the University of Wyoming

Table of Contents

To The Instructor	xi
To The Student	xv
Review of Concepts In Mechanics	1	(32)
Brief History of Mechanics	2	(4)
Newtonian Mechanics, Engineering Mechanics	6	(2)
Newton's Laws of Motion	6	(2)
Units of Measure and Physical Dimensions	8	(14)
Units of Mass and Force	9	(3)
The International System of Units (SI)	12	(4)
U.S. Customary System of Units	16	(2)
Physical Dimensions and Their Use	18	(1)
Conversion of Units	19	(1)
Dimensional Homogeneity	20	(2)
Numerical Computations in Engineering	22	(4)
Modeling	22	(1)
Accuracy of Data	23	(2)
Significant Figures	25	(1)
Suggestions for Problem Solving	26	(7)
Problems	28	(5)
Forces and Other Vector Quantities	33	(52)
Characteristics of Forces	34	(5)
Concurrent Forces	38	(1)
Coplanar Forces	38	(1)
Newton's Third Law	39	(3)
Force Resultants and Force Components	42	(5)
The Parallelogram Law and Composition of Forces	42	(1)
The Parallelogram Law and Resolution of Forces	43	(1)
Polygon Law of Forces	44	(3)
Vectors and Vector Quantities	47	(6)
Vector Types	48	(1)
Nonvector Quantities	49	(1)
Vector Arithmetic	49	(4)
Rectangular Components of a Vector	53	(10)
Axes	53	(1)
Rectangular Cartesian Coordinate Systems	54	(1)
Orthogonal Projection of a Vector on an Axis	54	(2)
Rectangular Cartesian Projections of a Vector	56	(2)
Addition of Vectors Using Rectangular Cartesian Projections	58	(1)
Associative Law of Vector Addition	59	(1)
Commutative Law of Vector Addition	59	(1)
General Vector in Space	59	(4)
Unit Vectors	63	(22)
Three-Dimensional Vectors	64	(3)
Two-Dimensional Vectors	67	(6)
Problems	73	(12)
Equilibrium of a Particle	85	(42)
Concept of Particle Equilibrium	86	(2)
Free-Body Diagrams	88	(8)
Types of Forces	96	(2)
Concept of a Rigid Body	98	(1)
Equilibrium of a Two-Force Member	99	(5)
Transmissibility of Forces That Act on a Rigid Body	104	(2)
Equilibrium of a Rigid Body Subjected to Concurrent Forces	106	(21)
Equilibrium of a Three-Force Member	107	(5)
Problems	112	(15)
Two-Dimensional Forces, Couples, And Rigid-Body Equilibrium	127	(70)
Moment of Coplanar Forces with Respect to an Axis	128	(6)
Resultant of Coplanar Forces That Act on a Rigid Body	134	(4)
Parallel Coplanar Forces and Couples	138	(8)
Parallel Coplanar Forces	139	(3)
Couples	142	(4)
Moment of a Couple	146	(4)
Sense of a Couple	147	(1)
Representation of a Couple	147	(1)
Moment of the Forces of a Couple with Respect to a Point	147	(1)
Resultant of Several Couples	148	(2)
Lateral Displacement of Forces	150	(4)
Equilibrium of a Rigid Body Subjected to Coplanar Forces	154	(10)
Equilibrium Conditions Referred to Rectangular Coordinates	155	(8)
Other Special Cases	163	(1)
Alternative Formulations of Equilibrium for Coplanar Forces	164	(4)
General Theory of Parallel Forces	168	(29)
Lateral Displacement of a Force	168	(1)
Composition of Parallel Forces	169	(1)
Resultant Axis of a System of Parallel Forces	169	(2)
Equilibrium of a Rigid Body under the Action of Parallel Forces	171	(3)
Problems	174	(23)
Three-Dimensional Forces, Couples, And Rigid-Body Equilibrium	197	(70)
Vector Algebra	198	(11)
Scalar Product of Two Vectors	198	(6)
Vector Product of Two Vectors	204	(5)
Moment of a Force about a Point	209	(2)
Moment of a Force about the Origin	209	(2)
Moment of a Force about an Axis	211	(6)
Moment of a Force about a Line with Specified Direction Cosines	213	(1)
Alternative Forms for Expressing the Moment of a Force about a Line	214	(3)
Vector Representation of Couples	217	(4)
Representation of a Couple as a Vector Product	221	(3)
Composition of Forces That Act on a Rigid Body	224	(4)
Forces with Zero Resultant	225	(3)
Resultant Axis and the Wrench	228	(4)
The Fundamental Principle of Equilibrium of a Rigid Body	232	(35)
Equilibrium Conditions Referred to Rectangular Coordinates	233	(1)
Three-Dimensional Supports	234	(10)
Problems	244	(23)
Trusses	267	(44)
The Truss---A System of Two-Force Members	268	(7)
Historical Review of Trusses	270	(3)
Idealization of Trusses	273	(2)
Stability and Statical Determinacy	275	(4)
Methods of Truss Analysis	279	(1)
Zero-Force Members	279	(1)
Counter-Diagonals	280	(1)
The Method of Joints	280	(5)
The Method of Sections	285	(5)
Compound and Complex Trusses	290	(4)
Space Trusses	294	(17)
Problems	298	(13)
Simple Structures And Machines	311	(62)
The Lever	312	(4)
The Pulley	316	(4)
Simple Plane Frames	320	(8)
Mechanisms	328	(5)
Parabolic Cables and the Suspension Bridge	333	(9)
The Catenary---A Freely Hanging Cable	342	(31)
Problems	351	(22)
Center of Gravity, Centroids, and Distributed Forces	373	(66)
Gravity Axis of a Body	374	(3)
Center of Gravity in Cartesian Coordinates	377	(3)
Center of Gravity by Integration	380	(13)
Centroid of a Volume in Cartesian Coordinates	382	(2)
Volume Integrals in Cylindrical and Spherical Coordinates	384	(9)
Centroids of Plane Areas and Lines	393	(10)
Centroid of a Plane Area in Cartesian Coordinates	393	(2)
Centroid of a Line in Cartesian Coordinates	395	(1)
Centroids of Plane Areas and Lines in Polar Coordinates	396	(7)
Composite Bodies	403	(7)
Bodies without Holes or Cavities	403	(1)
Bodies with Holes or Cavities	404	(6)
Theorems of Pappus-Guldinus	410	(5)
Resultants of Distributed Parallel Forces	415	(24)
Distributed Forces on a Straight Line Segment	416	(1)
Distributed Load on a Plane Area	417	(4)
Problems	421	(18)
Fluid Statics	439	(50)
Definitions of Stress, Fluid, and Pressure	440	(2)
The Concept of Pressure at a Point	442	(3)
Standard Atmospheric Conditions	443	(1)
Absolute, Local, and Gage Pressure	443	(2)
Pressure on the Surface of a Solid Body	445	(1)
Pressure Variation with Depth in a Fluid	445	(7)
Systems of Tubes Containing Stationary Fluids	447	(5)
Normal Force on a Flat Surface	452	(2)
Center of Pressure	454	(5)
Distributed Pressure on Curved Surfaces	459	(8)
Buoyancy	467	(22)
Stability of Floating and Submerged Bodies	469	(7)
Problems	476	(13)
Friction	489	(64)
Frictional Force	490	(6)
Friction Facts and Coefficients of Friction	491	(5)
Block on an Inclined Plane: The Angle of Repose	496	(2)
Problems Involving Friction	498	(9)
Simple Machines and Friction	507	(8)
The Wedge	508	(1)
The Screw or Screw Thread	508	(1)
The Jackscrew	509	(6)
Belt Friction	515	(9)
Flat Belts	516	(2)
V-Belts	518	(6)
Friction Clutches and Brakes	524	(29)
Clutches	524	(3)
Brakes	527	(3)
Problems	530	(23)
Beams And Shafts	553	(52)
Support Reactions: Beams Subjected to Concentrated Forces and Couples	554	(5)
Shear Forces and Bending Moments in Beams	559	(4)
Beams and Shafts Subjected to Axial Forces and Twisting Moments	563	(8)
Axial Forces	564	(1)
Twisting Moment, or Torque	565	(6)
Internal Force Diagrams for Beams and Shafts Subjected to Concentrated Forces and Couples	571	(7)
Shear/Moment Relations	574	(4)
Shear and Bending-Moment Diagrams for Beams Subjected to Distributed Loads	578	(27)
Problems	591	(14)
Work Principles	605	(36)
Work	606	(3)
Work as a Line Integral	609	(5)
Work Performed by Gravity	614	(3)
Work Performed by a Couple	617	(3)
Body Displaced in a Plane	617	(1)
Body Displaced in Space	618	(2)
Principle of Virtual Work	620	(6)
Stable, Unstable, and Neutral Equilibrium	626	(15)
Problems	632	(9)
Appendix A Algebraic Equations And Determinants	641	(4)
Appendix B Geometric, Trigonometric, And Hyperbolic Relations	645	(4)
Appendix C Area Moments of Inertia	649	(12)
Appendix D Properties of Lines, Areas, And Volumes	661	(6)
References	667	(2)
Answers To Selected Even-Numbered Problems	669	(8)
Index	677	(6)
Credits	683