Aircraft Structures for Engineering Students

Aircraft Structures for Engineering Students, Sixth Edition, is the leading self-contained aircraft structures course text. It covers all fundamental subjects, including elasticity, structural analysis, airworthiness and aeroelasticity. Now in its sixth edition, the author has expanded the book’s coverage of analysis and design of composite materials for use in aircraft, and has added new, real-world and design-based examples, along with new end-of-chapter problems of varying complexity.

• Expanded coverage of composite materials and structures
• New practical and design-based examples and problems throughout the text aid understanding and relate concepts to real world applications
• Updated and additional Matlab examples and exercises support use of computational tools in analysis and design
• Available online teaching and learning tools include downloadable Matlab code, solutions manual, and image bank of figures from the book

Undergraduate and postgraduate students of aerospace and aeronautical engineering. Also suitable for professional development and training courses

Part A: Fundamentals of Structural Analysis

Section A1: Elasticity

• Chapter 1: Basic elasticity
  • Abstract
  • 1.1 Stress
  • 1.2 Notation for forces and stresses
  • 1.3 Equations of equilibrium
  • 1.4 Plane stress
  • 1.5 Boundary conditions
  • 1.6 Determination of stresses on inclined planes
  • 1.7 Principal stresses
  • 1.8 Mohr's circle of stress
  • 1.9 Strain
  • 1.10 Compatibility equations
  • 1.11 Plane strain
  • 1.12 Determination of strains on inclined planes
  • 1.13 Principal strains
  • 1.14 Mohr's circle of strain
  • 1.15 Stress–strain relationships
  • 1.16 Experimental measurement of surface strains
  • Abstract
  • 2.1 Two-dimensional problems
  • 2.2 Stress functions
  • 2.3 Inverse and semi-inverse methods
  • 2.4 St. Venant's principle
  • 2.5 Displacements
  • 2.6 Bending of an end-loaded cantilever
  • Abstract
  • 3.1 Prandtl stress function solution
  • 3.2 St. Venant warping function solution
  • 3.3 The membrane analogy
  • 3.4 Torsion of a narrow rectangular strip

  Section A2: Virtual work, energy, and matrix methods

  • Chapter 4: Virtual work and energy methods
    • Abstract
    • 4.1 Work
    • 4.2 Principle of virtual work
    • 4.3 Applications of the principle of virtual work
    • Abstract
    • 5.1 Strain energy and complementary energy
    • 5.2 Principle of the stationary value of the total complementary energy
    • 5.3 Application to deflection problems
    • 5.4 Application to the solution of statically indeterminate systems
    • 5.5 Unit load method
    • 5.6 Flexibility method
    • 5.7 Total potential energy
    • 5.8 Principle of the stationary value of the total potential energy
    • 5.9 Principle of superposition
    • 5.10 Reciprocal theorem
    • 5.11 Temperature effects
    • Abstract
    • 6.1 Notation
    • 6.2 Stiffness matrix for an elastic spring
    • 6.3 Stiffness matrix for two elastic springs in line
    • 6.4 Matrix analysis of pin-jointed frameworks
    • 6.5 Application to statically indeterminate frameworks
    • 6.6 Matrix analysis of space frames
    • 6.7 Stiffness matrix for a uniform beam
    • 6.8 Finite element method for continuum structures

    Section A3: Thin plate theory

    • Chapter 7: Bending of thin plates
      • Abstract
      • 7.1 Pure bending of thin plates
      • 7.2 Plates subjected to bending and twisting
      • 7.3 Plates subjected to a distributed transverse load
      • 7.4 Combined bending and in-plane loading of a thin rectangular plate
      • 7.5 Bending of thin plates having a small initial curvature
      • 7.6 Energy method for the bending of thin plates

      Section A4: Structural instability

      • Chapter 8: Columns
        • Abstract
        • 8.1 Euler buckling of columns
        • 8.2 Inelastic buckling
        • 8.3 Effect of initial imperfections
        • 8.4 Stability of beams under transverse and axial loads
        • 8.5 Energy method for the calculation of buckling loads in columns
        • 8.6 Flexural–torsional buckling of thin-walled columns
        • Abstract
        • 9.1 Buckling of thin plates
        • 9.2 Inelastic buckling of plates
        • 9.3 Experimental determination of the critical load for a flat plate
        • 9.4 Local instability
        • 9.5 Instability of stiffened panels
        • 9.6 Failure stress in plates and stiffened panels
        • 9.7 Tension field beams

        Section A5: Vibration of structures

        • Chapter 10: Structural vibration
          • Abstract
          • 10.1 Oscillation of mass–spring systems
          • 10.2 Oscillation of beams
          • 10.3 Approximate methods for determining natural frequencies

          Part B: Analysis of Aircraft Structures

          Section B1: Principles of stressed skin construction

          • Chapter 11: Materials
            • Abstract
            • 11.1 Aluminum alloys
            • 11.2 Steel
            • 11.3 Titanium
            • 11.4 Plastics
            • 11.5 Glass
            • 11.6 Composite materials
            • 11.7 Properties of materials
            • Abstract
            • 12.1 Loads on structural components
            • 12.2 Function of structural components
            • 12.3 Fabrication of structural components
            • 12.4 Connections

            Section B2: Airworthiness and airframe loads

            • Chapter 13: Airworthiness
              • Abstract
              • 13.1 Factors of safety-flight envelope
              • 13.2 Load factor determination
              • Abstract
              • 14.1 Aircraft inertia loads
              • 14.2 Symmetric maneuver loads
              • 14.3 Normal accelerations associated with various types of maneuver
              • 14.4 Gust loads
              • Abstract
              • 15.1 Safe life and fail-safe structures
              • 15.2 Designing against fatigue
              • 15.3 Fatigue strength of components
              • 15.4 Prediction of aircraft fatigue life
              • 15.5 Crack propagation

              Section B3: Bending, shear and torsion of thin-walled beams

              • Chapter 16: Bending of open and closed, thin-walled beams
                • Abstract
                • 16.1 Symmetrical bending
                • 16.2 Unsymmetrical bending
                • 16.3 Deflections due to bending
                • 16.4 Calculation of section properties
                • 16.5 Applicability of bending theory
                • 16.6 Temperature effects
                • Abstract
                • 17.1 General stress, strain, and displacement relationships for open and single-cell closed section thin-walled beams
                • 17.2 Shear of open section beams
                • 17.3 Shear of closed section beams
                • Abstract
                • 18.1 Torsion of closed section beams
                • 18.2 Torsion of open section beams
                • Abstract
                • 19.1 Bending
                • 19.2 Shear
                • 19.3 Torsion
                • Abstract
                • 20.1 Principle
                • 20.2 Idealization of a panel
                • 20.3 Effect of idealization on the analysis of open and closed section beams
                • 20.4 Deflection of open and closed section beams

                Section B4: Stress analysis of aircraft components

                • Chapter 21: Wing spars and box beams
                  • Abstract
                  • 21.1 Tapered wing spar
                  • 21.2 Open and closed section beams
                  • 21.3 Beams having variable stringer areas
                  • Abstract
                  • 22.1 Bending
                  • 22.2 Shear
                  • 22.3 Torsion
                  • 22.4 Cut-outs in fuselages
                  • Abstract
                  • 23.1 Three-boom shell
                  • 23.2 Bending
                  • 23.3 Torsion
                  • 23.4 Shear
                  • 23.5 Shear center
                  • 23.6 Tapered wings
                  • 23.7 Deflections
                  • 23.8 Cut-outs in wings
                  • Abstract
                  • 24.1 Principles of stiffener/web construction
                  • 24.2 Fuselage frames
                  • 24.3 Wing ribs
                  • Abstract
                  • 25.1 Elastic constants of a simple lamina
                  • 25.2 Stress–strain relationships for an orthotropic ply (macro approach)
                  • 25.3 Laminates
                  • 25.4 Thin-walled composite beams

                  Section B5: Structural and loading discontinuities

                  • Chapter 26: Closed section beams
                    • Abstract
                    • 26.1 General aspects
                    • 26.2 Shear stress distribution at a built-in end of a closed section beam
                    • 26.3 Thin-walled rectangular section beam subjected to torsion
                    • 26.4 Shear lag
                    • Abstract
                    • 27.1 I-Section beam subjected to torsion
                    • 27.2 Torsion of an arbitrary section beam
                    • 27.3 Distributed torque loading
                    • 27.4 Extension of the theory to allow for general systems of loading
                    • 27.5 Moment couple (bimoment)

                    Section B6: Introduction to aeroelasticity

                    • Chapter 28: Wing problems
                      • Abstract
                      • 28.1 Types of problem
                      • 28.2 Load distribution and divergence
                      • 28.3 Control effectiveness and reversal
                      • 28.4 Introduction to “flutter”

                      Appendix: Design of a rear fuselage

                      • A.1 Specification
                      • A.2 Data
                      • A.3 Initial calculations
                      • A.4 Balancing out calculations
                      • A.5 Fuselage loads
                      • A.6 Fuselage design calculations