材料力学 英文版PDF|Epub|txt|kindle电子书版本下载

材料力学 英文版PDF格式电子书版下载

注意：本站所有压缩包均有解压码： 点击下载压缩包解压工具

1 Introduction1

1.1 The Task of Mechanics of Materials1

1.2 Basic Assumptions of Deformable Solid Bodies2

1.3 Geometrical Characteristics of the Members3

1.4 Analysis of Internal Forces;Stress4

1.5 Basic Forms of Rod Deformation7

2 Axially Loaded Bars9

2.1 Introduction9

2.2 Internal Forces9

2.3 Stresses on Cross-sections and Oblique-sections11

2.4 Axial Deformation;Normal Strain17

2.5 Stress-strain Diagram in Tensile Test18

2.6 Stress-strain Diagram in Compressive Test24

2.7 Deformations of Rods under Axial Loading;Hooke's Law26

2.8 Allowable Stress;Factor of Safety30

2.9 Statically Indeterminate Problems34

2.10 Problems Involving Manufacture Errors and Temperature Changes39

2.11 Stress Concentrations44

Problems47

3 Shearing and Bearing56

3.1 Introduction56

3.2 Shear Stress57

3.3 Bearing Stress58

Problems66

4 Torsion71

4.1 Introduction71

4.2 Torsion of Circular Shafts72

4.3 Design of Transmission Shafts76

4.4 Angle of Twist in the Elastic Range;Design of Transmission Shafts for Stiffness81

4.5 Statically Indeterminate Shafts85

4.6 Torsion of Noncircular Members88

4.7 Thin-walled Hollow Shafts90

Problems94

5 Shear and Moment in Beams99

5.1 Introduction99

5.2 Supports and Loads100

5.3 Shear and Bending-moment Diagrams101

5.4 Relations among Load,Shear,and Bending Moment107

5.5 Moving Loads114

5.6 Internal-Force Diagrams of Rigid Frames and Curved Bars118

Problems120

6 Stresses in Beams124

6.1 Introduction124

6.2 Bending Stresses in Prismatic Beams in Pure Bending124

6.3 Economic Sections136

6.4 Shear Stress in Beams139

6.5 Design for Flexure and Shear148

6.6 Design of Fasteners in Built-up Beams151

6.7 Shear Flow in Thin-Walled Beams153

6.8 Shear Center155

6.9 Unsymmetrical Bending160

6.10 Beams of Constant Strength165

Problems168

7 Deflection of Beams179

7.1 Introduction179

7.2 Equation of the Elastic Curve;Double Integration Method179

7.3 Method of Superposition186

7.4 Statically Indeterminate Beams193

7.5 Deflection of Beams in Unsymmetric Bending202

Problems205

8 Transformations of Stress and Strain211

8.1 Introduction211

8.2 Preliminary Discussion of Transformation of Stress212

8.3 Transformation of Plane Stress214

8.4 Mohr's Circle for Plane Stress222

8.5 Absolute Maximum Shear Stress228

8.6 Theories of Failure231

8.7 Transformation of Strain;Mohr's Circle for Strain239

8.8 The Strain Rosette246

8.9 Multiaxial Loading;Generalized Hooke's Law249

Problems254

9 Stresses due to Combined Loads260

9.1 Introduction260

9.2 Thin-Walled Pressure Vessels260

9.3 Combined of Axial and Lateral Loads264

9.4 Eccentric Axial Loading267

9.5 Combination of Torsion and Bending;Design of Transmission Shafts278

Problems281

10 Energy Method288

10.1 Introduction288

10.2 Strain Energy and Strain Energy Density288

10.3 Impact Loading299

10.4 Design for Impact Loading303

10.5 Work and Energy under Several Loads;Maxwell's Reciprocal Theorem306

10.6 Castigliano's Theorem309

10.7 Statically Indeterminate Structures314

Problems317

11 Columns324

11.1 Introduction324

11.2 Euler's Formula for Pin-Ended Columns326

11.3 Extension of Euler's Formula to Columns with Other End Conditions329

11.4 Applicability of Euler's Formula;Critical Stress Diagram334

11.5 Discount-Coefficient Method342

11.6 Optimization of Column Design for Stability348

Problems354

Appendix A Moments of Areas361

A.1 First moment of an area;Centriod361

A.2 Determination of the first moment and centroid of a composite area363

A.3 Second moment,or moment of inertia,of an area;Radius of gyration366

A.4 Parallel-axis theorem369

A.5 Determination of the moment of interia of a composite area370

A.6 Product of inertia for an area372

A.7 Moments of inertia for an area about inclined axes375

A.8 Mohr's circle for moments of inertia378

Problems384

Appendix B Typical Properties of Selected Materials Used in Engineering388

Appendix C Properties of Rolled-Steel Shapes390

ANSWERS403