Page 13 - Aircraft Stuctures for Engineering Student

xii Preface to Second Edition

Chapter 10 remains an investigation into structural constraint, although the pre-
sentation has been changed particularly in the case of the study of shear lag. The
theory for the restrained warping of open section beams now includes general systems
of loading and introduces the concept of a moment couple or bimoment.
Only minor changes have been made to Chapter 11 while Chapter 12 now includes
a detailed study of fatigue, the fatigue strength of components, the prediction of
fatigue life and crack propagation. Finally, Chapter 13 now includes a much more
detailed investigation of flutter and the determination of critical flutter speed.
I am indebted to Professor D. J. Mead of the University of Southampton for
many useful comments and suggestions. I am also grateful to Mr K. Broddle of
British Aerospace for supplying photographs and drawings of aircraft structures.

T.H.G. Megson
1989