本书是高等学校“材料力学”双语教学课程教材。全书共计11章，内容包括：轴向拉伸与压缩，剪切与挤压，扭转，弯曲内力，弯曲应力，弯曲变形，应力应变变换与强度理论，组合变形，能量法，压杆稳定等。本书重视基本概念，讲述详尽，推理严谨，有较强的科学性；习题有较强的工程背景，插图精美而逼真。主要作高等学校材料力学双语教学的教科书，也可作研究生及工程技术人员的参考书。

本书是“十一五”国家级规划教材。内容有轴向拉伸与压缩，剪切与挤压，扭转，弯曲内力，弯曲应力，弯曲变形，应力应变变换与强度理论，组合变形，能量法，压杆稳定；在附录中有截面图形几何性质及型钢表。书中的例题较多，形式新颖；英语表述流畅。

本书主要作高等学校材料力学双语教学的教科书，也可作研究生及工程技术人员的参考书。

前言

LIST OF SYMBOLS

SI Units

1 Introduction(1)

1.1 The Task of Mechanics of Materials(1)

1.2 Basic Assumptions of Deformable Solid Bodies(2)

1.3 Geometrical Characteristics of the Members(3)

1.4 Analysis of Internal Forces; Stress(4)

1.5 Basic Forms of Rod Deformation(7)

2 Axially Loaded Bars(9)

2.1 Introduction(9)

2.2 Internal Forces(9)

2.3 Stresses on Cross-sections and Oblique-sections(11)

2.4 Axial Deformation; Normal Strain(17)

2.5 Stress-strain Diagram in Tensile Test(18)

2.6 Stress-strain Diagram in Compressive Test(24)

2.7 Deformations of Rods under Axial Loading; Hooke's Law(26)

2.8 Allowable Stress; Factor of Safety(30)

2.9 Statically Indeterminate Problems(34)

2.10 Problems Involving Manufacture Errors and Temperature Changes(39)

2.11 Stress Concentrations(44)

Problems(47)

3 Shearing and Bearing(56)

3.1 Introduction(56)

3.2 Shear Stress(57)

3.3 Bearing Stress(58)

Problems(66)

4 Torsion(71)

4.1 Introduction(71)

4.2 Torsion of Circular Shafts(72)

4.3 Design of Transmission Shafts(76)

4.4 Angle of Twist in the Elastic Range;Design of Transmission Shafts for Stiffness( 81 )

4.5 Statically Indeterminate Shafts(85)

4.6 Torsion of Noncircular Members(88)

4.7 Thin-walled Hollow Shafts(90)

Problems(94)

5 Shear and Moment in Beams(99)

5.1 Introduction(99)

5.2 Supports and Loads(100)

5.3 Shear and Bending-moment Diagrams(101)

5.4 Relations among Load, Shear,and Bending Moment(107)

5.5 Moving Loads(114)

5.6 Internal-Force Diagrams of Rigid Frames and Curved Bars(118)

Problems(120)

6 Stresses in Beams(124)

6.1 "Introduction(124)

6.2 Bending Stresses in Prismatic Beams in Pure Bending(124)

6.3 Economic Sections(136)

6.4 Shear Stress in Beams(139)

6.5 Design for Flexure and Shear(148)

6.6 Design of Fasteners in Built-up Beams(151)

6.7 Shear Flow in Thin-Walled Beams(153)

6.8 Shear Center(155)

6.9 Unsymmetrical Bending(160)

6.10 Beams of Constant Strength(165)

Problems(168)

7 Deflection of Beams(179)

7.1 Introduction(179)

7.2 Equation of the Elastic Curve;Double Integration Method(179)

7.3 Method of Superposition(186)

7.4 Statically Indeterminate Beams(193)

7.5 Deflection of Beams in Unsymmetric Bending(202)

Problems(205)

8 Transformations of Stress and Strain

8.1 Introduction(211)

8.2 Preliminary Discussion of Transformation of Stress(212)

8.3 Transformation of Plane Stress(214)

8.4 Mohr's Circle for Plane Stress(222)

8.5 Absolute Maximum Shear Stress(228)

8.6 Theories of Failure(231)

8.7 Transformation of Strain; Mohr's Circle for Strain(239)

8.8 The Strain Rosette(246)

8.9 Muhiaxial Loading; Generalized Hooke's Law(249)

Problems(254)

9 Stresses due to Combined Loads(260)

9.1 Introduction(260)

9.2 Thin-Walled Pressure Vessels(260)

9.3 Combined of Axial and Lateral Loads(264)

9.4 Eccentric Axial Loading(267)

9.5 Combination of Torsion and Bending;Design of Transmission Shafts(278)

Problems(281)

10 Energy Method(288)

10.1 Introduction(288)

10.2 Strain Energy and Strain Energy Density(288)

10.3 Impact Loading(299)

10.4 Design for Impact Loading(303)

10.5 Work and Energy under Several Loads; Maxwell's Reciprocal Theorem(306)

10.6 Castigliano's Theorem(309)

10.7 Statically Indeterminate Structures(314)

Problems(317)

11 Columns(324)

11.1 Introduction(324)

11.2 Euler's Formula for Pin-Ended Columns(326)

11.3 Extension of Euler's Formula to Columns with Other End Conditions(329)

11.4 Applicability of Euler's Formula;Critical Stress Diagram(334)

11.5 Discount-Coefficient Method(342)

11.6 Optimization of Column Design for Stability(348)

Problems(354)

Appendix A Moments of Areas(361)

A.1 First moment of an area; Centriod(361)

A.2 Determination of the first moment and centroid of a composite area(363)

A.3 Second moment, or moment of inertia, of an area; Radius of gyration(366)

A.4 Parallel-axis theorem(369)

A.5 Determination of the moment of interia of a composite area(370)

A.6 Product of inertia for an area(372)

A.7 Moments of inertia for an area about inclined axes(375)

A.8 Mohr's circle for moments of inertia(378)

Problems(384)

Appendix B Typical Properties of Selected Materials Used in Engineering(388)

Appendix C Properties of Rolled-Steel Shapes(390)

ANSWERS(403)