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PREFACE

The European Structural Integrity Society (ESIS) Technical Committee on Fatigue of
Engineering Materials and Structures (TC3) decided to compile a Special Technical
Publication (ESIS STP) based on the 115 papers presented at the 6th International Conference
on BiaxiaVMultiaxial Fatigue and Fracture. The 25 selected papers included in the STP have
been extended and revised by the authors. The Conference was held in Lisbon, Portugal, on
25-28 June 2001, and was chaired by Manuel de Freitas, Instituto Superior Tecnico, Lisbon.
The meeting was organised by the Instituto Superior Tecnico, and sponsored by the
Portuguese Ministerio da Ciencia e da Tecnologia and by the European Structural Integrity
Society. It was attended by 151 delegates from 20 countries.

The previous International Conferences on BiaxialMultiaxial Fatigue and Fracture were
held in San Francisco (1982), Sheffield (1985), Stuttgart (1989), St Germain en Laye (1994),
and Cracow (1997).

The papers in the present book deal with theoretical, numerical and experimental aspects
of the multiaxial fatigue and fracture of engineering materials and structures. They are divided
into the following six sections:

(1) Multiaxial Fatigue of Welded Structures (4 papers);
(2) High Cycle Multiaxial Fatigue (3 papers);
(3) Non-Proportional and Variable-Amplitude hading (5 papers);
(4) Defects, Notches, Crack Growth (7 papers);
(5) Low Cycle Multiaxial Fatigue (4 papers);
(6) Applications and Testing Methods (2 papers).

This book presents recent world advances in the field of multiaxial fatigue and fracture. It is
the result of co-operation between many researchers from different laboratories, universities
and industries in a number of countries, As is well-known, most of engineering components
and structures in the mechanical, aerospace, power generation and other industries are
subjected to multiaxial loading during their service life. One of the most difficult tasks in
design against fatigue and fracture is to translate the information gathered from uniaxial
fatigue and fracture tests on engineering materials into applications involving complex states
of cyclic stress-strain conditions.

Numerous people have contributed to the publication of the present book. The editors
wish to express their most grateful thanks to the authors of the 25 papers included in the
publication, and also to the authors of the papers which the reviewers did not feel able to
recommend for inclusion. Further, the editors wish to thank especially the following experts
(in alphabetical order) for their valuable contributions as reviewers of manuscripts: