Mechanics of Aircraft Structures / Edition 1

Mechanics of Aircraft Structures / Edition 1

by C. T. Sun
     
 

ISBN-10: 0471178772

ISBN-13: 9780471178774

Pub. Date: 03/28/1998

Publisher: Wiley

This Second Edition of the bestselling textbook Mechanics of Aircraft Structures combines fundamentals, an overview of new materials, and rigorous analysis tools into an excellent one-semester introductory course in structural mechanics and aerospace engineering. It's also extremely useful to practicing aerospace or mechanical engineers who want to keep abreast of new…  See more details below

Overview

This Second Edition of the bestselling textbook Mechanics of Aircraft Structures combines fundamentals, an overview of new materials, and rigorous analysis tools into an excellent one-semester introductory course in structural mechanics and aerospace engineering. It's also extremely useful to practicing aerospace or mechanical engineers who want to keep abreast of new materials and recent advances. Updated and expanded, this hands-on reference covers: Introduction to elasticity of anisotropic solids, including mechanics of composite materials and laminated structures, Stress analysis of thin-walled structures with end constraints, Elastic buckling of beam-column, plates, and thin-walled bars, Fracture mechanics as a tool in studying damage tolerance and durability.

Designed and structured to provide a solid foundation in structural mechanics, Mechanics of Aircraft Structures, Second Edition includes more examples, more details on some of the derivations, and more sample problems to ensure that students develop a thorough understanding of the principles.

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Product Details

ISBN-13:
9780471178774
Publisher:
Wiley
Publication date:
03/28/1998
Edition description:
Older Edition
Pages:
272
Product dimensions:
6.53(w) x 9.62(h) x 0.95(d)

Table of Contents

Prefacexiii
Preface to the First Editionxv
1Characteristics of Aircraft Structures and Materials1
1.1Introduction1
1.2Basic Structural Elements in Aircraft Structure2
1.2.1Axial Member2
1.2.2Shear Panel4
1.2.3Bending Member (Beam)5
1.2.4Torsion Member7
1.3Wing and Fuselage8
1.3.1Load Transfer9
1.3.2Wing Structure10
1.3.3Fuselage11
1.4Aircraft Materials12
Problems17
2Introduction to Elasticity19
2.1Concept of Displacement19
2.2Strain21
2.3Stress25
2.4Equations of Equilibrium in a Nonuniform Stress Field28
2.5Principal Stress31
2.6Shear Stress34
2.7Revisit of Transformation of Stress36
2.8Linear Stress-Strain Relations38
2.8.1Strains Induced by Normal Stress39
2.8.2Strains Induced by Shear Stress42
2.8.3Three-Dimensional Stress-Strain Relations43
2.9Elastic Strain Energy47
2.10Plane Elasticity49
2.10.1Stress-Strain Relations for Plane Isotropic Solids50
2.10.2Stress-Strain Relations for Orthotropic Solids in Plane Stress53
2.10.3Governing Equations54
2.10.4Solution by Airy Stress Function for Plane Isotropic Solids56
Problems57
3Torsion63
3.1Saint-Venant's Principle63
3.2Torsion of Uniform Bars67
3.3Bars with Circular Cross-Sections74
3.4Bars with Narrow Rectangular Cross-Sections77
3.5Closed Single-Cell Thin-Walled Sections81
3.6Multicell Thin-Walled Sections91
3.7Warping in Open Thin-Walled Sections96
3.8Warping in Closed Thin-Walled Sections101
3.9Effect of End Constraints103
Problems110
4Bending and Flexural Shear115
4.1Derivation of the Simple (Bernoulli-Euler) Beam Equation115
4.2Bidirectional Bending120
4.3Transverse Shear Stress due to Transverse Force in Symmetric Sections128
4.3.1Narrow Rectangular Cross-Section128
4.3.2General Symmetric Sections130
4.3.3Thin-Walled Sections132
4.3.4Shear Deformation in Thin-Walled Sections133
4.4Timoshenko Beam Theory136
4.5Shear Lag140
Problems144
5Flexural Shear Flow in Thin-Walled Sections149
5.1Flexural Shear Flow in Open Thin-Walled Sections149
5.1.1Symmetric Thin-Walled Sections150
5.1.2Unsymmetric Thin-Walled Sections155
5.1.3Multiple Shear Flow Junctions157
5.1.4Selection of Shear Flow Contour158
5.2Shear Center in Open Sections159
5.3Closed Thin-Walled Sections and Combined Flexural and Torsional Shear Flow165
5.3.1Shear Center165
5.3.2Statically Determinate Shear Flow171
5.4Closed Multicell Sections173
Problems177
6Failure Criteria for Isotropic Materials183
6.1Strength Criteria for Brittle Materials183
6.1.1Maximum Principal Stress Criterion184
6.1.2Coulomb-Mohr Criterion184
6.2Yield Criteria for Ductile Materials186
6.2.1Maximum Shear Stress Criterion (Tresca Yield Criterion) in Plane Stress187
6.2.2Maximum Distortion Energy Criterion (von Mises Yield Criterion)188
6.3Fracture Mechanics193
6.3.1Stress Concentration193
6.3.2Concept of Cracks and Strain Energy Release Rate194
6.3.3Fracture Criterion196
6.4Stress Intensity Factor201
6.4.1Symmetric Loading (Mode I Fracture)201
6.4.2Antisymmetric Loading (Mode II Fracture)204
6.4.3Relation between K and G206
6.4.4Mixed Mode Fracture210
6.5Effect of Crack Tip Plasticity211
6.6Fatigue Failure214
6.6.1Constant Stress Amplitude215
6.6.2S-N Curves215
6.6.3Variable Amplitude Loading216
6.7Fatigue Crack Growth217
Problems219
7Elastic Buckling225
7.1Eccentrically Loaded Beam-Column225
7.2Elastic Buckling of Straight Bars227
7.2.1Pinned-Pinned Bar228
7.2.2Clamped-Free Bar231
7.2.3Clamped-Pinned Bar232
7.2.4Clamped-Clamped Bar234
7.2.5Effective Length of Buckling235
7.3Initial Imperfection236
7.4Postbuckling Behavior238
7.5Bar of Unsymmetric Section244
7.6Torsional-Flexural Buckling of Thin-Walled Bars246
7.6.1Nonuniform Torsion246
7.6.2Torsional Buckling of Doubly Symmetric Section248
7.6.3Torsional-Flexural Buckling251
7.7Elastic Buckling of Flat Plates256
7.7.1Governing Equation for Flat Plates256
7.7.2Cylindrical Bending258
7.7.3Buckling of Rectangular Plates259
7.7.4Buckling under Shearing Stresses263
7.8Local Buckling of Open Sections264
Problems266
8Analysis of Composite Laminates271
8.1Plane Stress Equations for Composite Lamina271
8.2Off-Axis Loading277
8.3Notation for Stacking Sequence in Laminates280
8.4Symmetric Laminate under In-Plane Loading282
8.5Effective Moduli for Symmetric Laminates285
8.6Laminar Stresses288
8.7[plus or minus degree] Laminate290
Problems292
Index295

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