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MECHANICS OF AIRCRAFT STRUCTURES
Explore the most up-to-date overview of the foundations of aircraft structures combined with a review of new aircraft materials
The newly revised Third Edition of Mechanics of Aircraft Structures delivers a combination of the fundamentals of aircraft structure with an overview of new materials in the industry and a collection of rigorous analysis tools into a single one-stop resource. Perfect for a one-semester introductory course in structural mechanics and aerospace engineering, the distinguished authors have created a textbook that is also ideal for mechanical or aerospace engineers who wish to stay updated on recent advances in the industry.
The new edition contains new problems and worked examples in each chapter and improves student accessibility. A new chapter on aircraft loads and new material on elasticity and structural idealization form part of the expanded content in the book. Readers will also benefit from the inclusion of:
Perfect for senior undergraduate and graduate students in aerospace engineering, Mechanics of Aircraft Structures will also earn a place in the libraries of aerospace engineers seeking a one-stop reference to solidify their understanding of the fundamentals of aircraft structures and discover an overview of new materials in the field.
Autorentext
C. T. Sun, PhD, is Neil A. Armstrong Distinguished Professor Emeritus of Aeronautics and Astronautics at Purdue University. Dr. Sun was the inaugural recipient of the AIAA-ASC James H. Starnes Award and the 2007 ASME Warner T. Koiter Medal.
Ashfaq Adnan, PhD, is Professor in the Mechanical and Aerospace Engineering Department at the University of Texas at Arlington and a Fellow of ASME. His research focus is on deformation, damage, and failure of biological, bioinspired, and engineered materials at multiple length scales.
Klappentext
MECHANICS OF AIRCRAFT STRUCTURES Explore the most up-to-date overview of the foundations of aircraft structures combined with a review of new aircraft materials The newly revised Third Edition of Mechanics of Aircraft Structures delivers a combination of the fundamentals of aircraft structure with an overview of new materials in the industry and a collection of rigorous analysis tools into a single one-stop resource. Perfect for a one-semester introductory course in structural mechanics and aerospace engineering, the distinguished authors have created a textbook that is also ideal for mechanical or aerospace engineers who wish to stay updated on recent advances in the industry. The new edition contains new problems and worked examples in each chapter and improves student accessibility. A new chapter on aircraft loads and new material on elasticity and structural idealization form part of the expanded content in the book. Readers will also benefit from the inclusion of: A thorough introduction to the characteristics of aircraft structures and materials, including the different types of aircraft structures and their basic structural elements An exploration of load on aircraft structures, including loads on wing, fuselage, landing gear, and stabilizer structures An examination of the concept of elasticity, including the concepts of displacement, strain, and stress, and the equations of equilibrium in a nonuniform stress field A treatment of the concept of torsion Perfect for senior undergraduate and graduate students in aerospace engineering, Mechanics of Aircraft Structures will also earn a place in the libraries of aerospace engineers seeking a one-stop reference to solidify their understanding of the fundamentals of aircraft structures and discover an overview of new materials in the field.
Inhalt
CONTENTS Preface xiii Preface to the First Edition xv 1 Characteristics of Aircraft Structures and Materials 1 1.1 Introduction / 1 1.2 Types of Aircraft Structures / 1 1.2.1 Fixed-wing Aircraft / 1 1.2.2 Rotorcraft / 2 1.2.3 Lighter-than-air Vehicles / 2 1.2.4 Drones / 2 1.3 Basic Structural Elements in Aircraft Structure / 3 1.3.1 Fuselage / 3 1.3.2 Wing / 3 1.3.3 Landing Gear / 3 1.3.4 Control Surfaces / 4 1.4 Aircraft Materials / 4 Problems / 6 2 Loads on Aircraft Structures 7 2.1 Introduction / 7 2.2 Basic Structural Elements / 7 2.2.1 Axial Member / 7 2.2.2 Shear Panel / 8 2.2.3 Bending Member (Beam) / 9 2.2.4 Torsion Member / 10 2.3 Wing and Fuselage / 11 2.3.1 Load Transfer / 11 2.3.2 Wing Structure / 12 2.3.3 Fuselage / 13 Problems / 15 3 Introduction to Elasticity 18 3.1 Introduction / 18 3.2 Concept of Displacement / 19 3.3 Strain / 21 3.4 Stress / 26 3.5 Equations of Equilibrium in a Uniform Stress Field / 28 3.6 Equations of Equilibrium in a Nonuniform Stress Field / 30 3.7 Stress Vector-Stress Component Relations / 32 3.8 Principal Stress / 34 3.9 Shear Stress / 37 3.10 Stress Transformation / 39 3.11 Linear Stress-Strain Relations / 41 3.11.1 Strains Induced by Normal Stress / 42 3.11.2 Strains Induced by Shear Stress / 45 3.11.3 Three-Dimensional Stress-Strain Relations / 46 3.12 Plane Elasticity / 51 3.12.1 Stress-Strain Relations for Plane Isotropic Solids / 51 3.12.2 Stress-Strain Relations for Orthotropic Solids in Plane Stress / 54 3.12.3 Governing Equations / 55 3.12.4 Solution by Airy Stress Function for Plane Isotropic Solids / 58 3.12.5 Plane Elasticity Solutions in Polar Coordinate System / 60 3.13 Formulations Beyond 2D Plane Elasticity / 64 Problems / 66 4 Torsion 74 4.1 Introduction / 74 4.2 Torsion of Uniform Bars with Arbitrary Cross-section/ 75 4.2.1 Governing Equations / 75 4.2.2 Boundary Conditions / 78 4.3.3 Torque-Stress Relations / 79 4.3.4 Warping Displacement / 80 4.3.5 Torsion Constant / 80 4.3 Bars with Circular Cross-Sections / 81 4.3.1 Elasticity Approach using Prandtl Stress Function / 81 4.3.2 Mechanics of Solid Approach / 84 4.4 Bars with Narrow Rectangular Cross-Sections / 87 4.5 Closed Single-Cell Thin-Walled Sections / 91 4.5.1 The s-n coordinate system / 91 4.5.2 Prandtl Stress Function / 93 4.5.3 Shear Flow q / 94 4.5.4 Shear Flow - Torque Relation / 95 4.5.5 Twist Angle / 96 4.5.6 Torsion Constant J / 99 4.6 Multicell Thin-Walled Sections / 102 4.7 Warping in Open Thin-Walled Sections / 107 4.8 Warping in Closed Thin-Walled Sections / 111 4.9 Effect of End Constraints / 113 Problems / 120 5 Bending and Flexural Shear 126 5.1 Introduction / 126 5.2 Bernoulli-Euler Beam Theory / 126 5.2.1 Unidirectional Bending on Beams with a Symmetric Section / 126 5.2.2 Bidirectional Bending on Beams with an Arbitrary Section / 132 5.3 Structural idealization / 137 5.4 Transverse Shear Stress due to Transverse Force in Symmetric Sections / 146 5.4.1 Narrow Rectangular Cross-Section / 147 5.4.2 General Symmetric Sections / 148 5.4.3 Thin-Walled Sections / 150 5.34.4 Shear Deformation in Thin-Walled Sections / 151 5.5 Timoshenko Beam Theory / 154 5.6 Saing-Venant's Principle / 158 5.7 Shear Lag / 162 Problems / 165 6 Flexural Shear Flow in Thin-Walled Sections 171 6.1 Introduction / 171 6.2 Flexural Shear Flow in Open Thin-Walled Sections / 171 6.2.1 Symmetric Thin-Walled Sections / 172 6.2.2 Unsymmetric Thin-Walled Sections / 176 6.2.3 Multiple Shear Flow Junctions / 178 6.2.4 Selection of Shear Flow Contour / 179 6.3 Shear Center in Open Sections / 180 6.4 Closed Thin-Walled Sections and Combined Flexural and Torsional Shear Flow / 186 6.4.1 Shear Center / 187 6.4.2 Statically Determinate She…