Multiaxial Notch Fatigue

1st Edition

Authors: Luca Susmel
Hardcover ISBN: 9781845695828
eBook ISBN: 9781845695835
Imprint: Woodhead Publishing
Published Date: 20th March 2009
Page Count: 588
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Table of Contents

Useful stress quantities used in fatigue problems; Fundamentals of fatigue assessment; The modified Wöhler curve method in fatigue assessment; Fatigue assessment of notched components according to the modified Wöhler curve method; Multiaxial fatigue assessment of welded structures; The modified Wöhler curve method and metallic materials cracking behaviour under fatigue loading; The modified Manson-Coffin curve method in fatigue assessment; Multiaxial fatigue of composite materials.

Description

Metal and composite components used in structural engineering not only contain geometrical features resulting in stress concentration phenomena, but they are also subjected to in-service multiaxial fatigue loading. To address the problem, structural engineers need reliable methodologies which allow for an adequate margin of safety. The book summarises methods devised by the author to design real components against multiaxial fatigue by taking full advantage not only of nominal but also of local stress-strain quantities.

The book begins by reviewing definitions suitable for calculating the stress-strain quantities commonly used to perform fatigue assessment. The Modified Wöhler Curve Method is then explained in detail, by focusing attention on both the high- and the medium-cycle fatigue regime. The existing links between the multiaxial fatigue criterion and physical properties are also discussed. A procedure suitable for employing the method developed by the author to estimate fatigue damage both in notched and in welded components is explained. The Modified Manson-Coffin Curve method is investigated in depth, by reviewing those concepts playing a fundamental role in the so-called strain based approach. Lastly, the problem of performing the fatigue assessment of composite materials is addressed by considering design parameters influencing composite behaviour under complex cyclic loading paths and those criteria suitable for designing real components against multiaxial fatigue. The book also contains two appendices summarising experimental data from the technical literature. These appendices provide a unique and highly valuable resource for engineers. The appendices summarise around 100 values of the material characteristic length L, experimentally determined by testing specimens made of different engineering materials and about 4500 experimental fatigue results generated by testing plain, notched and welded specimens under constant-amplitude proportional and n

Key Features

  • Summarises methods devised by the author to design real components against multiaxial fatigue
  • Reviews definitions suitable for calculating the stress-strain quantities commonly used to perform fatigue assessment
  • Includes an in-depth explanation of both the Modified Wöhler Curve and Modified Manson-Coffin Curve Method

Readership

Structural engineers, Engineering students and academics


Details

No. of pages:
588
Language:
English
Copyright:
© Woodhead Publishing 2009
Published:
Imprint:
Woodhead Publishing
eBook ISBN:
9781845695835
Hardcover ISBN:
9781845695828

About the Authors

Luca Susmel Author

Luca Susmel is an Associate Professor in Structural Integrity at the University of Ferrara, Italy.

Affiliations and Expertise

University of Ferrara, Italy