材料力学 英文版 原书第7版2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载

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1．Tension,Compression,and Shear1

1.1 Introduction to Mechanics of Materials1

1.2 Normal Stress and Strain2

1.3 Mechanical Properties of Materials8

1.4 Elasticity,Plasticity,and Creep17

1.5 Linear Elasticity,Hooke's Law,and Poisson's Ratio19

1.6 Shear Stress and Strain23

1.7 Allowable Stresses and Allowable Loads32

1.8 Design for Axial Loads and Direct Shear36

Problems40

2．Axially Loaded Members62

2.1 Introduction62

2.2 Changes in Lengths of Axially Loaded Members62

2.3 Changes in Lengths under Nonuniform Conditions69

2.4 Statically Indeterminate Structures75

2.5 Thermal Effects,Misfits,and Prestrains82

2.6 Stresses on Inclined Sections91

2.7 Strain Energy101

2.8 Impact Loading111

2.9 Repeated Loading and Fatigue118

2.10 Stress Concentrations120

2.11 Nonlinear Behavior125

2.12 Elastoplastic Analysis129

Problems134

3．Torsion164

3.1 Introduction164

3.2 Torsional Deformations of a Circular Bar165

3.3 Circular Bars of Linearly Elastic Materials168

3.4 Nonuniform Torsion178

3.5 Stresses and Strains in Pure Shear184

3.6 Relationship Between Moduli of Elasticity E and G190

3.7 Transmission of Power by Circular Shafts191

3.8 Statically Indeterminate Torsional Members195

3.9 Strain Energy in Torsion and Pure Shear199

3.10 Thin-Walled Tubes202

3.11 Stress Concentrations in Torsion212

Problems214

4．Shear Forces and Bending Moments234

4.1 Introduction234

4.2 Types of Beams,Loads,and Reactions234

4.3 Shear Forces and Bending Moments241

4.4 Relationships Between Loads,Shear Forces,and Bending Moments246

4.5 Shear-Force and Bending-Moment Diagrams250

Problems259

5．Stresses in Beams(Basic Topics)270

5.1 Introduction270

5.2 Pure Bending and Nonuniform Bending271

5.3 Curvature of a Beam272

5.4 Longitudinal Strains in Beams273

5.5 Normal Stresses in Beams(Linearly Elastic Materials)277

5.6 Design of Beams for Bending Stresses287

5.7 Nonprismatic Beams295

5.8 Shear Stresses in Beams of Rectangular Cross Section298

5.9 Shear Stresses in Beams of Circular Cross Section307

5.10 Shear Stresses in the Webs of Beams with Flanges309

5.11 Built-Up Beams and Shear Flow314

5.12 Beams with Axial Loads318

5.13 Stress Concentrations in Bending323

Problems325

6．Stresses in Beams (Advanced Topics)348

6.1 Introduction348

6.2 Composite Beams348

6.3 Transformed-Section Method357

6.4 Doubly Symmetric Beams with Inclined Loads361

6.5 Bending of Unsymmetric Beams368

6.6 The Shear-Center Concept376

6.7 Shear Stresses in Beams of Thin-Walled Open Cross Sections378

6.8 Shear Stresses in Wide-Flange Beams381

6.9 Shear Centers of Thin-Walled Open Sections384

6.10 Elastoplastic Bending391

Problems399

7．Analysis of Stress and Strain418

7.1 Introduction418

7.2 Plane Stress419

7.3 Principal Stresses and Maximum Shear Stresses426

7.4 Mohr's Circle for Plane Stress434

7.5 Hooke's Law for Plane Stress447

7.6 Triaxial Stress451

7.7 Plane Strain455

Problems467

8．Applications of Plane Stress(Pressure Vessels,Beams,and Combined Loadings)482

8.1 Introduction482

8.2 Spherical Pressure Vessels482

8.3 Cylindrical Pressure Vessels487

8.4 Maximum Stresses in Beams494

8.5 Combined Loadings502

Problems515

9．Deflections of Beams528

9.1 Introduction528

9.2 Differential Equations of the Deflection Curve528

9.3 Defections by Integration of the Bending-Moment Equation533

9.4 Deflections by Integration of the Shear-Force and Load Equations542

9.5 Method of Superposition547

9.6 Moment-Area Method554

9.7 Nonprismatic Beams561

9.8 Strain Energy of Bending565

9.9 Castigliano's Theorem569

9.10 Deflections Produced by Impact580

9.11 Temperature Effects582

Problems584

10．Statically Indeterminate Beams602

10.1 Introduction602

10.2 Types of Statically Indeterminate Beams602

10.3 Analysis by the Differential Equations of the Deflection Curve605

10.4 Method of Superposition610

10.5 Temperature Effects620

10.6 Longitudinal Displacements at the Ends of a Beam623

Problems626

11．Columns635

11.1 Introduction635

11.2 Buckling and Stability635

11.3 Columns with Pinned Ends638

11.4 Columns with Other Support Conditions648

11.5 Columns with Eccentric Axial Loads657

11.6 The Secant Formula for Columns661

11.7 Elastic and Inelastic Column Behavior666

11.8 Inelastic Buckling668

Problems672

12．Review of Centroids and Moments of Inertia685

12.1 Introduction685

12.2 Centroids of Plane Areas685

12.3 Centroids of Composite Areas688

12.4 Moments of Inertia of Plane Areas691

12.5 Parallel-Axis Theorem for Moments of Inertia693

12.6 Polar Moments of Inertia697

12.7 Products of Inertia698

12.8 Rotation of Axes701

12.9 Principal Axes and Principal Moments of Inertia702

Problems706

References and Historical Notes712

Appendix A:Systems of Units and Conversion Factors721

Appendix B:Problem Solving729

Appendix C:Mathematical Formulas734

Appendix D:Properties of Plane Areas738

Appendix E:Properties of Structural-Steel Shapes744

Appendix F:Properties of Solid Timber750

Appendix G:Deflections and Slopes of Beams751

Appendix H:Properties of Materials757

Answers to Problems762

Index779