• Cover
• Half Title
• Introduction to Aircraft Structural Analysis
• Copyright
• Dedication
• Preface to the Third Edition
• Part A: Fundamentals of structural analysis
• Section A1: Elasticity
• Chapter 1 Basic elasticity
  • Stress
  • Notation for forces and stresses
  • Equations of equilibrium
  • Plane stress
  • Boundary conditions
  • Determination of stresses on inclined planes
  • Principal stresses
  • Mohr's circle of stress
  • Strain
  • Compatibility equations
  • Plane strain
  • Determination of strains on inclined planes
  • Principal strains
  • Mohr's circle of strain
  • Stress-strain relationships
    • Temperature effects
  • Experimental measurement of surface strains
  • Reference
  • Additional Reading
• Chapter 2 Two-dimensional problems in elasticity
  • Two-dimensional problems
  • Stress functions
  • Inverse and semi-inverse methods
  • St. venant's principle
  • Displacements
  • Bending of an end-loaded cantilever
  • Reference
• Chapter 3 Torsion of solid sections
  • Prandtl stress function solution
  • St. Venant warping function solution
  • The membrane analogy
  • Torsion of a narrow rectangular strip
  • References
• Section A2: Virtual work, energy, and matrix methods
• Chapter 4 Virtual work and energy methods
  • Work
  • Principle of virtual work
    • Principle of virtual work for a particle
    • Principle of virtual work for a rigid body
    • Virtual work in a deformable body
    • Work done by internal force systems
      • Axial force
      • Shear force
      • Bending moment
      • Torsion
      • Hinges
      • Sign of internal virtual work
    • Virtual work due to external force systems
    • Use of virtual force systems
  • Applications of the principle of virtual work
  • Reference
• Chapter 5 Energy methods
  • Strain energy and complementary energy
  • Principle of the stationary value of the total complementary energy
  • Application to deflection problems
  • Application to the solution of statically indeterminate systems
  • Unit load method
  • Flexibility method
    • Self-straining trusses
  • Total potential energy
  • Principle of the stationary value of the total potential energy
  • Principle of superposition
  • Reciprocal theorem
  • Temperature effects
  • References
  • Further reading
• Chapter 6 Matrix methods
  • Notation
  • Stiffness matrix for an elastic spring
  • Stiffness matrix for two elastic springs in line
  • Matrix analysis of pin-jointed frameworks
  • Application to statically indeterminate frameworks
  • Matrix analysis of space frames
  • Stiffness matrix for a uniform beam
  • Finite element method for continuum structures
    • Stiffness matrix for a beam-element
    • Stiffness matrix for a triangular finite element
    • Stiffness matrix for a quadrilateral element
  • References
  • Further reading
• Section A3: Thin plate theory
• Chapter 7 Bending of thin plates
  • Pure bending of thin plates
  • Plates subjected to bending and twisting
  • Plates subjected to a distributed transverse load
    • The simply supported edge
    • The built-in edge
    • The free edge
  • Combined bending and in-plane loading of a thin rectangular plate
  • Bending of thin plates having a small initial curvature
  • Energy method for the bending of thin plates
    • Strain energy produced by bending and twisting
    • Potential energy of a transverse load
    • Potential energy of in-plane loads
  • Further reading
• Section A4: Structural instability
• Chapter 8 Columns
  • Euler buckling of columns
  • Inelastic buckling
  • Effect of initial imperfections
  • Stability of beams under transverse and axial loads
  • Energy method for the calculation of buckling loads in columns
  • Flexural-torsional buckling of thin-walled columns
  • References
• Chapter 9 Thin plates
  • Buckling of thin plates
  • Inelastic buckling of plates
  • Experimental determination of the critical load for a flat plate
  • Local instability
  • Instability of stiffened panels
  • Failure stress in plates and stiffened panels
  • Tension field beams
    • Complete diagonal tension
    • Incomplete diagonal tension
    • Postbuckling behavior
  • References
• Part B: Analysis of aircraft structures
• Section B1: Principles of stressed skin construction
• Chapter 10 Materials
  • Aluminum alloys
  • Steel
  • Titanium
  • Plastics
  • Glass
  • Composite materials
  • Properties of materials
    • Outline placeholder
      • Ductility
      • Brittleness
      • Elastic materials
      • Plasticity
      • Isotropic materials
      • Anisotropic materials
      • Orthotropic materials
    • Testing of engineering materials
      • Tensile tests
      • Compression tests
      • Bending tests
      • Shear tests
      • Hardness tests
      • Impact tests
    • Stress-strain curves
      • Low carbon steel (mild steel)
      • Aluminum
      • Brittle materials
      • Composites
    • Strain hardening
    • Creep and relaxation
    • Fatigue
• Chapter 11 Structural components of aircraft
  • Loads on structural components
  • Function of structural components
  • Fabrication of structural components
  • Connections
    • Simple lap joint
      • Rivet shear
      • Bearing pressure
      • Plate failure in tension
      • Shear failure in a plate
    • Joint efficiency
    • Group-riveted joints
    • Eccentrically loaded riveted joints
    • Use of adhesives
  • Reference
• Section B2: Airworthiness and airframe loads
• Chapter 12 Airworthiness
  • Factors of safety-flight envelope
  • Load factor determination
    • Limit load
    • Uncertainties in design and structural deterioration
    • Variation in structural strength
    • Fatigue
  • Reference
• Chapter 13 Airframe loads
  • Aircraft inertia loads
  • Symmetric maneuver loads
    • Level flight
    • General case of a symmetric maneuver
  • Normal accelerations associated with various types of maneuver
    • Steady pull-out
    • Correctly banked turn
  • Gust loads
    • Sharp-edged gust
    • The graded gust
    • Gust envelope
  • References
• Chapter 14 Fatigue
  • Safe life and fail-safe structures
  • Designing against fatigue
  • Fatigue strength of components
  • Prediction of aircraft fatigue life
  • Crack propagation
    • Stress concentration factor
    • Crack tip plasticity
    • Crack propagation rates
  • References
  • Further reading
• Section B3: Bending, shear and torsion of thin-walled beams
• Chapter 15 Bending of open and closed, thin-walled beams
  • Symmetrical bending
    • Assumptions
    • Direct stress distribution
    • Anticlastic bending
  • Unsymmetrical bending
    • Sign conventions and notation
    • Resolution of bending moments
    • Direct stress distribution due to bending
    • Position of the neutral axis
    • Load intensity, shear force, and bending moment relationships, the general case
  • Deflections due to bending
    • Singularity functions
  • Calculation of section properties
    • Parallel axes theorem
    • Theorem of perpendicular axes
    • Second moments of area of standard sections
    • Product second moment of area
    • Approximations for thin-walled sections
  • Applicability of bending theory
  • Temperature effects
  • Reference
• Chapter 16 Shear of beams
  • General stress, strain, and displacement relationships for open and single-cell closed section thin-walled beams
  • Shear of open section beams
    • Shear center
  • Shear of closed section beams
    • Twist and warping of shear loaded closed section beams
    • Shear center
  • References
• Chapter 17 Torsion of beams
  • Torsion of closed section beams
    • Displacements associated with the Bredt-Batho shear flow
    • Condition for zero warping at a section
  • Torsion of open section beams
    • Warping of the cross-section
  • Reference
• Chapter 18 Combined open and closed section beams
  • Bending
  • Shear
  • Torsion
• Chapter 19 Structural idealization
  • Principle
  • Idealization of a panel
  • Effect of idealization on the analysis of open and closed section beams
    • Bending of open and closed section beams
    • Shear of open section beams
    • Shear loading of closed section beams
    • Alternative method for the calculation of shear flow distribution
    • Torsion of open and closed section beams
  • Deflection of open and closed section beams
• Section B4: Stress analysis of aircraft components
• Chapter 20 Wing spars and box beams
  • Tapered wing spar
  • Open and closed section beams
  • Beams having variable stringer areas
  • Reference
• Chapter 21 Fuselages
  • Bending
  • Shear
  • Torsion
  • Cut-outs in fuselages
• Chapter 22 Wings
  • Three-boom shell
  • Bending
  • Torsion
  • Shear
  • Shear center
  • Tapered wings
  • Deflections
  • Cut-outs in wings
  • Reference
• Chapter 23 Fuselage frames and wing ribs
  • Principles of stiffener/web construction
  • Fuselage frames
  • Wing ribs
• Chapter 24 Laminated composite structures
  • Elastic constants of a simple lamina
  • Stress-strain relationships for an orthotropic ply (macro approach)
    • Specially orthotropic ply
    • Generally orthotropic ply
  • Laminates
    • Assumptions and notation
    • Laminate under in-plane loading
    • Equivalent elastic constants
    • Laminate strengths
  • Thin-walled composite beams
    • Axial load
    • Bending
    • Shear
      • Open section beams
      • Closed section beams
    • Torsion
      • Closed section beams
      • Open section beams
  • References
• Index
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • L
  • M
  • N
  • P
  • R
  • S
  • T
  • U
  • V
  • W
  • Y
• Back Cover

...ادامه