材料力學

內容概要

　　近年來，國家教育部出臺的一系列倡導高等院校開展雙語教學、引進原版教材的政策，對于加快我國高等教育改革的步伐，培養(yǎng)具有國際競爭力的高水平技術人才，發(fā)揮了積極的促進作用。材料力學也引進了多個版本的英文原版教材，但由于教育體制和教學模式的差異，一時還很難直接用于我國目前的課程教學。縮編和改編是把優(yōu)秀原版教材引入雙語教學的橋梁。我們在開展材料力學雙語教學的過程中，針對本專業(yè)的特點，嘗試在國外優(yōu)秀教材基礎上精選其主體內容并進行適當縮編的方式，取得了較好的效果。通過幾年的教學實踐我們體會到，縮編的原版教材有內容貼近教學和語言原汁原味等特點，適于教學。
　　由Ferdinand P．Beer等編寫的Mechanics ofMaterials（Fourth Edition in SI
Units）采用以應力為鋪路石，以構件變形為主線的體系，符合國內教學改革的主流方向。教材結構清晰、論述嚴謹、圖文并茂，同時還附有少量計算題目。該教材將桿件設計概念貫穿全書，廣泛采用三維插圖，有助于揭示力學原理、貼近工程實際以及培養(yǎng)學生分析問題、解決問題的能力。書中每章都分別針對基本概念和原理設置多個“Examples
and Sample Problems”和“Homework ProblemSets”，每章后面還設有“Chapter Review
and Summary”、“Review
Problems”和“ComputerProblems”，具有突出“三基”，循序漸進，由簡到繁的特色。教材中一些專題性的內容是獨立的，便于刪減。
　　經過認真對比研究，我們選擇了該書作為基礎進行縮編。縮編后的教材保留了原版教材的特色，同時結合國內雙語教學的需要適當地刪減了一些內容，如去掉了塑性變形（除軸向拉伸與壓縮變形以外）等國內材料力學教材都不講授或很少講授的內容，精選了部分例題、習題講解和習題等。

作者簡介

作者：（美國）比爾（Ferdinand P. Beer） 改編：張燕 王紅囡 彭麗

書籍目錄

1 Introduction--Concept of Stress
　1.1 Introduction
　1.2 Stresses in the Members of a Structure
　1.3 Analysis and Design
　1.4 Axial Loading; Normal Stress
　1.5 Shearing Stress
　1.6 Bearing Stress in Connections
　1.7 Application to the Analysis and Design of Simple
Structures
　　Problems 1.1
　1.8 Stress on an Oblique Plane under, Axial Loading
　1.9 Stress under General Loading Conditions; Components of
Stress
　1.10 Design Considerations
　　Problems 1.2
　　Review and Summary for Chapter 1
　　Review Problems
　　Computer Problems
2 Stress and Strain--Axial Loading
　2.1 Introduction
　2.2 Normal Strain under Axial Loading
　2.3 Stress- Strain Diagram
　2.4 Hooke's Law; Modulus of Elasticity
　2.5 Elastic versus Plastic Behavior of a Material
　2.6 Repeated Loadings; Fatigue
　2.7 Deformations of Members under Axial Loading
　　Problems 2.1
　2.8 Statically Indeterminate Problems
　　Problems 2.2
　2.9 Poisson's Ratio
　2.10 Multiaxial Loading; Generalized Hooke's Law
　2.11 Shearing Strain
　　Problems 2.3
　2.12 Stress and Strain Distribution under Axial Loading;
Saint-Venant's Principle
　2.13 Stress Concentrations
　　Problems 2.4
　　Review and Summary for Chapter 2
　　Review Problems
　　Computer Problems
3 Torsion
　3.1 Introduction
　3.2 Preliminary Discussion of the Stresses In a Shaft
　3.3 Deformations in a Circular Shaft
　3.4 Stresses in the Elastic Range
　　Problems 3.1
　3.5 Angle of Twist in the Elastic Range
　3.6 Statically Indeterminate Shafts
　　Problems 3.2
　3.7 Design of Transmission Shafts
　3.8 Stress Concentrations in Circular Shafts
　　Problems 3.3
　　Review and Summary for Chapter 3
　　Review Problems
　　Computer Problems
4　Pure Bending
5 Analysis and Design of Beams for Bnding
6 Shearing Stresses in Beams
7 Transformations of Stress and Strain
8 Principal Stresses Under a Given Loaing
9 Deflection of Beams
10 Columns
Appendices

章節(jié)摘錄

版權頁：   插圖：   when equal and opposite torques are applied to the ends of the "shaft" (Fig. 3.7b).While sliding will not actually take place in a shaft madeof a homogeneous and cohesive material, the tendency for sliding will exist,showing that stresses occur on longitudinal planes as well as on planes perpendicular to the axis of the shaft. 3.3. Deformations in a Circular Shaft Consider a circular shaft that is attached to a fixed support at one end(Fig. 3.8a).If a torque T is applied to the other end, the shaft will twist,with its free end rotating through an angle called the angle of twist(Fig. 3.8b).Observation shows that,within a certain range of values of T,the angle of twist is proportional to T.It also shows that is proportional to the length L of the shaft.In other words,the angle of twist for a shaft of the same material and same cross section,but twice as long,will be twice as large under the same torque T.One purpose of our analysis-will be to find the specific relation existing among,L,and T;another purpose will be to determine the distribution of shearing stresses in the shaft,which we were unable to obtain in the preceding section on the basis of statics alone. At this point,an important property of circular shafts should be noted:When a circular shaft is subjected to torsion,every, cross section remains plane and undistorted.In other words,while the various cross sections along the shaft rotate through different amounts,each cross section rotates as a solid rigid slab.This is illustrated in Fig. 3.9a,which shows the deformations in a rubber model subjected to torsion.The property we are discussing is characteristic of circular shafts,whether solid or hollow;it is not enjoyed by members of noncircular cross section.For example,when a bar of square cross section is subjected to torsion,its various cross sections warp and do not remain plane(Fig.3.9b).

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《材料力學(第4版)(英文縮編版)》由清華大學出版社出版。

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