1 Introduction
1-1???????????? Mechanics Overview
1-2???????????? Applications of Statics
1-3???????????? The Mathematics of Statics
1-4???????????? Calculations and Numerical Accuracy
1-5???????????? SI Units for Statics and Strength of Materials
Summary
Problems
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2. Principles of Statics
2-1?????? Forces and the Effects of Forces
2-2?????? Characteristics of a Force
2-3?????? Units of a Force
2-4?????? Types and Occurrence of Forces
2-5?????? Scalar and Vector Quantities
2-6?????? The Principle of Transmissibility
2-7?????? Types of Force Systems
2-8?????? Orthogonal Concurrent Forces: Resultants and Components
Summary
Problems
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3. Resultants of Coplanar Force Systems
3-1?????? Resultant of Two Concurrent Forces
3-2?????? Resultant of Three of More Concurrent Forces
3-3?????? Moment of a Force
3-4?????? The Principle of Moments: Varignon? s Theorem
3-5?????? Resultants of Parallel Force Systems
3-6?????? Couples
3-7?????? Resultants of Nonconcurrent Force Systems
Summary
Problems
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4.? Equilibrium of Coplanar Force Systems
4-1?????? Introduction
4-2?????? Conditions of Equilibrium
4-3?????? The Free-Body Diagram
4-4?????? Equilibrium of Concurrent Force Systems
4-5?????? Equilibrium of Parallel Force Systems
4-6?????? Equilibrium of Nonconcurrent Force Systems
Summary
Problems
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5. Analysis of Structures
5-1?????? Introduction
5-2?????? Trusses
5-3?????? Forces in Members of Trusses
5-4?????? The Method of Joints???
5-5?????? The Method of Sections
5-6?????? Analysis of Frames
Summary
Problems
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6.? Friction
6-1?????? Introduction
6-2?????? Friction Theory
6-3?????? Angle of Friction
6-4?????? Friction Applications
6-5?????? Wedges
6-6?????? Belt Friction
6-7?????? Square-Threaded Screws
Summary
Problems
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7.? Centroids and Centers of Gravity
7-1?????? Introduction
7-2?????? Center of Gravity
7-3?????? Centroids and Centroidal Axes
7-4?????? Centroids and Centroidal Axes of Composite Areas
Summary
Problems
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8.? Area Moments of Inertia
8-1?????? Introduction and Definitions
8-2?????? Moment of Inertia
8-3?????? The Transfer Formula
8-4?????? Moment of Inertia of Composite Areas
8-5?????? Radius of Gyration
8-6?????? Polar Moments of Inertia
Summary
Problems
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9.? Stresses and Strains
9-1?????? Introduction
9-2?????? Tensile and Compressive Stresses
9-3?????? Shear Stresses
9-4?????? Tensile and Compressive Strain and Deformation
9-5?????? Shear Strain
9-6?????? The Relation between Stress and Strain (Hooke? s Law)
Summary
Problems
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10.? Properties of Materials
10-1???? The Tension Test
10-2???? The Stress-Strain Diagram
10-3???? Mechanical Properties of Materials
10-4???? Engineering Materials: Metals
10-5???? Engineering Materials: Nonmetals
10-6???? Allowable Stresses and Calculated Stresses
10-7???? Factor of Safety
10-8???? Elastic-Inelastic Behavior
Summary
Problems
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11.? Stress Considerations
11-1???? Poisson? s Ratio
11-2 ??? Thermal Effects
11-3???? Members Composed of Two or more Elements
11-4???? Stress Concentration
11-5???? Stresses on Inclined Planes
11-6???? Shear Stresses on Mutually Perpendicular Planes
11-7???? Tension and Compression Caused By Shear
Summary
Problems
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12.? Torsion in Circular Sections
12-1???? Introduction
12-2???? Members in Torsion
12-3???? Torsional Shear Stress
12-4???? Angle of Twist
12-5???? Transmission of Power by a Shaft
Summary
Problems
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13.? Shear and Bending Moment in Beams
13-1???? Types of Beams and Supports
13-2???? Types of Loads on Beams
13-3???? Beam Reactions
13-4???? Shear Force and Bending Moment
13-5???? Shear Diagrams
13-6???? Moment Diagrams
13-7???? Sections of Maximum Moment
13-8 ??? Moving Loads
Summary
Problems
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14.? Stresses in Beams
14-1???? Tensile and Compressive Stresses Due to Bending
14-2???? The Flexure Formula
14-3???? Computation of Bending Stresses
14-4???? Shear Stresses
14-5???? The General Shear Formula
14-6???? Shear Stresses in Structural Members
14-7???? Beam Analysis
14-8???? Inelastic Bending of Beams
Summary
Problems
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15.? Deflection of Beams
15-1???? Reasons for Calculating Beam Deflection
15-2???? Curvature and Bending Moment
15-3???? Methods of Calculating Deflections
15-4???? The Formula Method
15-5???? The Moment-Area Method
15-6???? Moment Diagram By Parts
15-7???? Applications of the Moment-Area Method
Summary
Problems
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16.? Design of Beams
16-1???? The Design Process
16-2???? Design of Steel Beams
16-3???? Design of Timber Beams
Summary
Problems
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17.? Combined Stresses
17-1???? Introduction
17-2???? Biaxial Bending
17-3???? Combined Axial and Bending Stresses
17-4???? Eccentrically Loaded Members
17-5???? Maximum Eccentricity for Zero Tensile Stress
17-6???? Eccentric Load Not on Centroidal Axis
17-7???? Combined Normal and Shear Stress
17-8???? Mohr? s Circle
17-9 ??? Mohr? s Circle: The General State of Stress
Summary
Problems
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18.? Columns
18-1???? Introduction
18-2???? Ideal Columns
18-3???? Effective Length
18-4???? Real Columns
18-5???? Allowable Stresses for Columns
18-6???? Axially-Loaded Structural Steel Columns (AISC)
18-7???? Axially-Loaded Steel Machine Parts
18-8???? Axially-Loaded Timber Columns
Summary
Problems
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19.? Connections
19-1???? Introduction
19-2???? Bolts and Bolted Connections (AISC)
19-3???? Modes of Failure of a Bolted Connection
19-4???? High-Strength Bolted Connections
19-5???? Introduction to Welding
19-6???? Strength and Behavior of Welded Connections (AISC)
Summary
Problems
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20.? Pressure Vessels
20-1???? Introduction
20-2???? Stresses in Thin-Walled Pressure Vessels
20-3???? Joints in Thin-Walled Pressure Vessels
20-4???? Design and Fabrication Considerations
Summary
Problems
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21.? Statically Indeterminate Beams
21-1???? Introduction
21-2???? Restrained Beams
21-3???? Propped Cantilever Beams
21-4???? Fixed Beams
21-5???? Continuous Beams: Superposition
21-6???? The Theorem of Three Moments
Summary
Problems
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Appendices
Notation
Answers to Selected Problems
Index