# Design and Analysis of Composite Structures: With Applications to Aerospace Structures

ISBN: 978-0-470-97270-0 September 2010 328 Pages

## Description

Design and Analysis of Composite Structures enables graduate students and engineers to generate meaningful and robust designs of complex composite structures. Combining analysis and design methods for structural components, the book begins with simple topics such as skins and stiffeners and progresses through to entire components of fuselages and wings.

Starting with basic mathematical derivation followed by simplifications used in real-world design, Design and Analysis of Composite Structures presents the level of accuracy and range of applicability of each method. Examples taken from actual applications are worked out in detail to show how the concepts are applied, solving the same design problem with different methods based on different drivers (e.g. cost or weight) to show how the final configuration changes as the requirements and approach change.

• Provides a toolkit of analysis and design methods to most situations encountered in practice, as well as analytical frameworks and the means to solving them for tackling less frequent problems.
• Presents solutions applicable to optimization schemes without having to run finite element models at each iteration, speeding up the design process and allowing examination of several more alternatives than traditional approaches.
• Includes guidelines showing how decisions based on manufacturing considerations affect weight and how weight optimization may adversely affect the cost.
• Accompanied by a website at www.wiley.com/go/kassapoglou hosting lecture slides and solutions to the exercises for instructors.
Preface

1. Applications of advanced composites in aircraft structures

References

2. Cost of Composites- A qualitative discussion

2.1 Recurring cost

2.2 Non-recurring cost

2.3 Technology selection

2.4 Summary and conclusions

Exercises

References

3. Review of Classical Laminated-Plate Theory

3.1 Composite Materials - Definitions, symbology and terminology

3.2 Constitutive equations in three dimensions

3.3 Constitutive equations in two dimensions - Plane stress

Exercises

References

4. Review of laminate strength and failure criteria

4.1 Maximum stress failure theory

4.2 Maximum strain failure theory

4.3 Tsai-Hill failure theory

4.4 Tsai-Wu failure theory

4.5 Other failure theories

References

5. Composite structural components and mathematical formulation

5.1 Overview of composite airframe

5.2 Governing equations

5.3 Reductions of governing equations - Applications to specific problems

5.4 Energy methods

Exercises

References

6. Buckling of composite plates

6.2 Buckling of rectangular composite plate under uniaxial compression

6.3 Buckling of rectangular composite plate under shear

6.4 Buckling of long rectangular composite plates under shear

6.5 Buckling of rectangular composite plates under combined loads

6.6 Design equations for different boundary conditions and load combinations

Exercises

References

7. Post-buckling

7.1 Post-buckling analysis of composite panels under compression

7.2 Post-buckling analysis of composite plates under shear

Exercises

References

8. Design and analysis of composite beams

8.1 Cross-section definition based on design guidelines

8.2 Cross-sectional properties

8.3 Column buckling

8.4 Beam on elastic foundation under compression

8.5 Crippling

8.6 Importance of radius regions at flange intersections

8.7 Inter-rivet buckling of stiffener flanges

8.8 Application - Analysis of stiffener in a stiffened panel under compression

Exercises

References

9. Skin-stiffened structure

9.1 Smearing of stiffness properties (equivalent stiffness)

9.2 Failure modes of a stiffened panel

9.3 Additional considerations of stiffened panels

Exercises

References

10. Sandwich structure

10.1 Sandwich bending stiffness

10.2 Buckling of sandwich structure

10.3 Sandwich wrinkling

10.4 Sandwich crimping

10.5 Sandwich intra-cellular buckling (dimpling) under compression

10.6 Attaching sandwich structures

Exercises

References

11. Good Design practices and Design "rules of thumb”

Exercises

References

Index

 Design and Analysis of Composite Structures Course instructors can visit the companion website to access lecture slides and solutions to the exercises in the book.