本书是普通高等教育“十一五”国家级规划教材，是在第1版的基础上，根据我国高等教育和教学改革的发展趋势，以及素质教育与创新精神培养的要求，在国家面向21世纪课程教学内容与体系改革项目的基础上，充分反映近年来基础力学教学第一线的新成果、新经验而修订的。

根据最新的课程教学基本要求，以及教学第一线很多教师的意见，本版的体系基本与第1版相同，在内容上作了一些调整，删去了能量法一章，将绪论改为工程力学课程概论，同时对部分内容进行了改写，在概念、原理的叙述方面作了一些改进，并按照国家标准，将名词术语、量和单位的名称、符号规范化。

本书分静力学和材料力学两篇。静力学篇包括静力学基础、力系的简化和静力学平衡问题等3章；材料力学篇包括材料力学的基本概念、轴向拉伸与压缩、圆轴扭转、弯曲强度、弯曲刚度、应力状态与强度理论、组合受力与变形杆件的强度计算、压杆的稳定性问题、动载荷与疲劳强度简述等9章。

本书可作为高等学校工科本科非机类各专业工程力学课程的教材，也可供独立学院、高职高专、成人高校师生及有关工程技术人员参考。

本书配有习题解答和课堂教学软件，免费提供给使用本教材的教师。

工程力学课程概论
  §1 工程力学与工程密切相关
  §2 工程力学的主要内容与分析模型
   2-1 工程力学的主要内容
   2-2 工程力学的两种分析模型
  §3 工程力学的分析方法
   3-1 两种不同的理论分析方法
   3-2 工程力学的实验分析方法
   3-3 工程力学的计算机分析方法
第一篇 静力学
  第1章 静力学基础
   §1-1 力和力矩
   §1-2 力偶及其性质
   §1-3 约束与约束力
   §1-4 平衡的概念
   §1-5 受力分析方法与过程
   §1-6 结论与讨论
   习题
  第2章 力系的简化
   §2-1 力系等效与简化的概念
   §2-2 力系简化的基础——力向一点平移定理
   §2-3 平面力系的简化
   §2-4 固定端约束的约束力
   §2-5 结论与讨论
   习题
  第3章 静力学平衡问题
   §3-1 平面力系的平衡条件与平衡方程
   §3-2 简单的空间力系平衡问题
   §3-3 简单的刚体系统平衡问题
   §3-4 考虑摩擦时的平衡问题
   §3-5 结论与讨论
   习题
第二篇 材料力学
  第4章 材料力学的基本概念
   §4-1 关于材料的基本假定
   §4-2 弹性杆件的外力与内力
   §4-3 弹性体受力与变形特点
   §4-4 杆件横截面上的应力
   §4-5 正应变与切应变
   §4-6 线弹性材料的应力-应变关系
   §4-7 杆件受力与变形的基本形式
   §4-8 结论与讨论
   习题
  第5章 轴向拉伸与压缩
   §5-1 轴力与轴力图
   §5-2 拉压杆件的应力与变形
   §5-3 拉压杆件的强度计算
   §5-4 拉伸与压缩时材料的力学性能
   §5-5 结论与讨论
   4*5-5-5 拉伸和压缩静不定问题概述
   习题
  第6章 圆轴扭转
   §6-1 工程上传递功率的圆轴及其扭转变形
   §6-2 扭矩与扭矩图
   §6-3 切应力互等定理
   §6-4 圆轴扭转时的切应力分析
   §6-5 圆轴扭转时的强度与刚度计算
   §6-6 结论与讨论
   习题
  第7章 弯曲强度
   §7-1 工程中的弯曲构件
   §7-2 剪力方程与弯矩方程
   §7-3 剪力图与弯矩图
   §7-4 与应力分析相关的截面图形几何量
   §7-5 平面弯曲时梁横截面上的正应力
   §7-6 平面弯曲正应力公式应用举例
   §7-7 梁的强度计算
   §7-8 结论与讨论
   习题
  第8章 弯曲刚度
   §8-1 弯曲变形与位移的基本概念
   §8-2 小挠度微分方程及其积分
   §8-3 工程中的叠加法
   §8-4 简单的静不定梁
   §8-5 弯曲刚度计算
   §8-6 结论与讨论
   习题
  第9章 应力状态与强度理论
   §9-1 基本概念
   §9-2 平面应力状态中任意方向面上的应力分析
   §9-3 应力状态中的主应力与最大切应力
   *§9-4 分析应力状态的应力圆方法
   §9-5 一般应力状态下的应力-应变关系 应变能密度
   §9-6 一般应力状态下的强度条件
   *9-6-2 第二强度理论
   §9-7 结论与讨论
   *9-7-3 关于应力状态的不同的表示方法
   习题
  第10章 组合受力与变形杆件的强度计算
   §10-1 斜弯曲
   §10-2 拉伸(压缩)与弯曲的组合
   §10-3 弯曲与扭转的组合
   §10-4 薄壁容器强度设计简述
   §10-5 结论与讨论
   习题
  第11章 压杆的稳定性问题
   §11-1 压杆稳定性的基本概念
   §11-2 细长压杆的临界载荷——欧拉临界力
   §11-3 长细比的概念 三类不同压杆的判断
   §11-4 压杆稳定性计算
   §11-5 压杆稳定性计算示例
   §11-6 结论与讨论
   习题
  第12章 动载荷与疲劳强度简述
   §12-1 等加速直线运动时构件上的惯性力与动应力
   §12-2 旋转构件的受力分析与动应力计算
   §12-3 冲击载荷与冲击应力计算
   §12-4 疲劳强度简述
   §12-5 疲劳极限与应力-寿命曲线
   §12-6 影响疲劳极限的因素
   §12-7 基于无限寿命设计方法的疲劳强度设计
   §12-8 结论与讨论
   习题
附录 型钢规格表
习题答案
索引
参考文献
Synopsis
Contents
主编简介
Course summary for engineering mechanics
  §1 Engineering mechanics is nearly related with engineering
  §2 Main contents and analysis model of engineering mechanics
   2-1 Main contents of engineering mechanics
   2-2 Two kinds of analysis model of engineering mechanics
  §3 Analysis methods of engineering mechanics
   3-1 Two different kinds of theoretical analysis methods
   3-2 Experimental analysis methods of engineering mechanics
   3-3 Computer analysis methods of engineering mechanics
Part I Statics
  Chapter 1 Fundamental statics
   §1-1 Force and force moment for a given point
   §1-2 Moment of a couple and its characteristic
   §1-3 Constraints and constraint force
   §1-4 Concept of equilibrium
   §1-5 Analysis method and process
   §1-6 Summary and discussion
   Problems and exercises
  Chapter 2 Reduction of a system of forces
   §2-1 Concepts of force systems equivalent and reduction
   §2-2 Foundation of reduction—theorem of translation of force
   §2-3 Reduction of planar forces system
   §2-4 Constraint forces of fixed end support constraint
   §2-5 Summary and discussion
   Problems and exercises
  Chapter 3 Statics equilibrium problems
   §3-1 Equilibrium conditions and equations of planar forces system
   §3-2 Equilibrium problems of simple spatial force system
   §3-3 Equilibrium problems of simple rigid body system
   §3-4 Equilibrium problems of the body with friction
   §3-5 Summary and discussion
   Problems and exercises
Part II Mechanics of materials
  Chapter 4 Fundamental summary of the mechanics of materials
   §4-1 Basic assumptions of the materials
   §4-2 External and internal force of elastic bar
   §4-3 Stress and deformation characteristics of the elastic body
   §4-4 Stress on the cross section of bar
   §4-5 Normal strain and shearing strain
   §4-6 Stress-strain relationship of linear elastic material
   §4-7 Basic forms of stress and deformation of bar
   §4-8 Summary and discussion
   Problems and exercises
  Chapter 5 Axial tension or compression
   §5-1 Axial force and its diagram
   §5-2 Stress and deformation of axially loaded bar
   §5-3 Strength calculation
   §5-4 Mechanic properties of materials under tension or compression
   §5-5 Summary and discussion
   *5-5-3 Stress distribution near the loaded point
   *5-5-4 Concept of the stress concetration
   *5-5-5 Summary of statically indeterminate problem under tension or compression
   Problems and exercises
  Chapter 6 torsion of circular shaft
   §6-1 Circular shaft transfering power in engineering and its torsiondeformation
   §6-2 Torsional moment and torque diagram
   §6-3 Equivalent law of shear stress
   §6-4 Torional stress analysis on torsion of circular shaft
   §6-5 Strength and stiffness caculation on torsion of circular shaft
   §6-6 Summary and discussion
  Chapter 7 Bending strength
   §7-1 Bending elements in engineering
   §7-2 Equations of shear force and bending moment
   §7-3 Diagrams of shearing force and bending moment
   §7-4 Geometric properties of cross section relating to stress analysis
   §7-5 Normal stress on the cross section of beam bended in one plane
   §7-6 Examples for the applications of the equation of plane bendingnormal stress
   §7-7 Strength comptutation of beams
   §7-8 Summary and discussion
   Problems and exercises
  Chapter 8 Bending Stiffness
   §8-1 Basic concepts of deformation and displacement of beams
   §8-2 Differential equation of small deflection of beams and its integration
   §8-3 Superposition method in engineering
   §8-4 Simple statically indeterminate beam
   §8-5 Bending Stiffness Calculation
   §8-6 Summary and discussion
   Problems and exercises
  Chapter 9 State of stress and theory of strength
   §9-1 Basic concepts
   §9-2 Stress analysis on arbitrary direction under state of stress of plane
   §9-3 Principal stress and maximum shear stress under state of stress
   *§9-4 Stress circle method of analysing state of stress
   §9-5 Stress-strain relation under general state of stress strain energydensity
   §9-6 Strength condition under general state of stress
   *9-6-2 Second strength theory
   §9-7 Summary and discussion
   *9-7-3 Different expressions of state of stress
   Problems and exercises
  Chapter 10 Strength calculation of transformative bar under the combinationforced
   §10-1 Skew bending
   §10-2 Combination of Axial Tension or Compression and Bending
   §10-3 Combination of bending and torsion
   §10-4 Sketch of strength design of thin-wall cyclindrical container
   §10-5 Summary and discussion
   Problems and exercises
  Chapter 11 Stability problem of column
   §11-1 Basic concept of stability of column
   §11-2 Critical load for slender column—Euler's formula
   §11-3 Concept of slenderness ratio，three different kinds of columns
   §11-4 Stability design of columns
   §11-5 Examples for Stability design
   §11-6 Summary and discussion
   Problems and exercises
  Chapter 12 Summary of dynamic load and fatigue strength
   §12-1 Interia force and dynamic stress of element during straight-linemotion with uniform acceleration
   §12-2 Stress analysis and calculation of dynamic stress of rotated element
   §12-3 Calculation of impact load and stress on element
   §12-4 Summary of fatigue strength
   §12-5 Fatigue limit and stress—life curve
   §12-6 Influencing factors on fatigue life
   §12-7 Fatigue strength based on finite-life design
   §12-8 Summary and discussion
   Problems and exercises
Appendix Properites of Rolled-Steel Shapes
Answers
Index
Reference
Synopsis
Contents
A Brief Introduction to the Author

“十一五”国家规划教材