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May 31, 2017

EBOOK - Mechanics of Materials 7th (James M. Gere & Barry J. Goodno)


EBOOK - Cơ học vật liệu 7th - Tác giả: James M. Gere & Barry J. Goodno (1045 Trang).

Mechanics of Materials is a basic engineering subject that must be understood by anyone concerned with the strength and physical performance of structures, whether those structures are man-made or natural. The subject matter includes such fundamental concepts as stresses and strains, deformations and displacements, elasticity and inelasticity, strain energy, and load-carrying capacity. These concepts underlie the design and analysis of a huge variety of mechanical and structural systems.
At the college level, mechanics of materials is usually taught during the sophomore and junior years. The subject is required for most students majoring in mechanical, structural, civil, biomedical, aeronautical, and aerospace engineering. Furthermore, many students from such diverse fields as materials science, industrial engineering, architecture, and agricultural engineering also find it useful to study this subject.


1 Tension, Compression, and Shear 2
1.1 Introduction to Mechanics of Materials 5
1.2 Normal Stress and Strain 7
1.3 Mechanical Properties of Materials 15
1.4 Elasticity, Plasticity, and Creep 24
1.5 Linear Elasticity, Hooke’s Law, and Poisson’s Ratio 27
1.6 Shear Stress and Strain 32
1.7 Allowable Stresses and Allowable Loads 43
1.8 Design for Axial Loads and Direct Shear 49
Chapter Summary & Review 55
Problems 57
2 Axially Loaded Members 88
2.1 Introduction 91
2.2 Changes in Lengths of Axially Loaded Members 91
2.3 Changes in Lengths Under Nonuniform Conditions 100
2.4 Statically Indeterminate Structures 107
2.5 Thermal Effects, Misfits, and Prestrains 116
2.6 Stresses on Inclined Sections 128
2.7 Strain Energy 140
2.8 Impact Loading 153
2.9 Repeated Loading and Fatigue 162
2.10 Stress Concentrations 164
2.11 Nonlinear Behavior 170
Specialized and/or advanced topics
2.12 Elastoplastic Analysis 175
Chapter Summary & Review 181
Problems 182
3 Torsion 220
3.1 Introduction 222
3.2 Torsional Deformations of a Circular Bar 223
3.3 Circular Bars of Linearly Elastic Materials 226
3.4 Nonuniform Torsion 238
3.5 Stresses and Strains in Pure Shear 245
3.6 Relationship Between Moduli of Elasticity EandG 252
3.7 Transmission of Power by Circular Shafts 254
3.8 Statically Indeterminate Torsional Members 259
3.9 Strain Energy in Torsion and Pure Shear 263
3.10 Thin-Walled Tubes 270
3.11 Stress Concentrations in Torsion 279
Chapter Summary & Review 282
Problems 283
4 Shear Forces and Bending Moments 304
4.1 Introduction 306
4.2 Types of Beams, Loads, and Reactions 306
4.3 Shear Forces and Bending Moments 313
4.4 Relationships Between Loads, Shear Forces, and Bending Moments 320
4.5 Shear-Force and Bending-Moment Diagrams 325
Chapter Summary & Review 337
Problems 338
5 Stresses in Beams (Basic Topics) 350
5.1 Introduction 353
5.2 Pure Bending and Nonuniform Bending 353
5.3 Curvature of a Beam 354
5.4 Longitudinal Strains in Beams 356
5.5 Normal Stresses in Beams (Linearly Elastic Materials) 361
5.6 Design of Beams for Bending Stresses 374
5.7 Nonprismatic Beams 383
5.8 Shear Stresses in Beams of Rectangular Cross Section 387
5.9 Shear Stresses in Beams of Circular Cross Section 397
5.10 Shear Stresses in the Webs of Beams with Flanges 400
5.11 Built-Up Beams and Shear Flow 408
5.12 Beams with Axial Loads 412
5.13 Stress Concentrations in Bending 418
Chapter Summary & Review 421
Problems 424
6 Stresses in Beams (Advanced Topics) 454
6.1 Introduction 457
6.2 Composite Beams 457
6.3 Transformed-Section Method 466
6.4 Doubly Symmetric Beams with Inclined Loads 472
6.5 Bending of Unsymmetric Beams 479
6.6 The Shear-Center Concept 487
6.7 Shear Stresses in Beams of Thin-Walled Open Cross Sections 489
6.8 Shear Stresses in Wide-Flange Beams 492
6.9 Shear Centers of Thin-Walled Open Sections 496
6.10 Elastoplastic Bending 504
Chapter Summary & Review 514
Problems 516
7 Analysis of Stress and Strain 536
7.1 Introduction 539
7.2 Plane Stress 540
7.3 Principal Stresses and Maximum Shear Stresses 548
7.4 Mohr’s Circle for Plane Stress 558
7.5 Hooke’s Law for Plane Stress 575
7.6 Triaxial Stress 580
7.7 Plane Strain 584
Chapter Summary & Review 600
Problems 602
8 Applications of Plane Stress (Pressure Vessels, Beams, and Combined Loadings)
8.1 Introduction 621
8.2 Spherical Pressure Vessels 621
8.3 Cylindrical Pressure Vessels 627
8.4 Maximum Stresses in Beams 635
8.5 Combined Loadings 645
Chapter Summary & Review 661
Problems 663
Advanced topics
9 Deflections of Beams 676
9.1 Introduction 679
9.2 Differential Equations of the Deflection Curve 679
9.3 Deflections by Integration of the Bending-Moment Equation 685
9.4 Deflections by Integration of the Shear-Force
and Load Equations 696
9.5 Method of Superposition 702
9.6 Moment-Area Method 711
9.7 Nonprismatic Beams 720
9.8 Strain Energy of Bending 725
9.9 Castigliano’s Theorem 731
9.10 Deflections Produced by Impact 744
9.11 Temperature Effects 746
Chapter Summary & Review 749
Problems 751
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