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Aerospace Structures

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Eric Raymond Johnson, Virginia Tech

Copyright Year: 2022

Publisher: Virginia Tech Publishing

Language: English

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Table of Contents

1. Function of Flight Vehicle Structural Members

2. Aircraft Loads

3. Elements of Thin-Walled Bar Theory

4. Some Aspects of the Structural Analysis

5. Work and Energy Methods

6. Applications of Castigliano's Theorems

7. Arches, Rings, and Fuselage Frames

8. Laminated Bars of Fiber-Reinforced Polymer Composites

9. Failure Initiation in FRP Compositives

10. Structural Stability of Discrete Conservative Systems

11. Buckling of Columns and Plates

12. Introduction to Aeroelasticity

13. Fracture of Cracked Members

14. Design of a Landing Strut and Wing Spar

15. Direct Stiffness Method

16. Applications of the Direct Stiffness Method

17. Finite Element Method

18. Introduction to Flexible Body Dynamics

Appendix A: Linear Elasticity of Solid Bodies

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About the Book

Aerospace Structures by Eric Raymond Johnson is a 600+ page text and reference book for junior, senior, and graduate-level aerospace engineering students. The text begins with a discussion of the aerodynamic and inertia loads acting on aircraft in symmetric flight and presents a linear theory for the status and dynamic response of thin-walled straight bars with closed and open cross-sections. Isotropic and fiber-reinforced polymer (FRP) composite materials including temperature effects are modeled with Hooke’s law. Methods of analyses are by differential equations, Castigliano’s theorems, the direct stiffness method, the finite element method, and Lagrange’s equations. There are numerous examples for the response axial bars, beams, coplanar trusses, coplanar frames, and coplanar curved bars. Failure initiation by the von Mises yield criterion, buckling, wing divergence, fracture, and by Puck’s criterion for FRP composites are presented in the examples.

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About the Contributors


Eric Raymond Johnson is emeritus professor of aerospace and ocean engineering at Virginia Tech. He earned his doctoral degree in applied mechanics from the University of Michigan in 1976, and from 1976 to 2003 was a member of the engineering faculty at Virginia Tech. Dr. Johnson s research area is composite structures. Research activities include the mechanics of the response and failure of advanced composite material structures with applications to flight and land vehicles, buckling and post-buckling of plates and shells, progressive failure analysis for the prediction of energy absorption in laminated composites and in bonded joints, and fracture mechanics. He has sixty-four publications in structural mechanics, and has been awarded research funding from government agencies and industries.. He is a senior member of the American Institute of Aeronautics and Astronautics and a member of the American Society of Mechanical Engineers.

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