Fatigue Strength of Welded Structures


  • S J Maddox, TWI, UK

The key to avoidance of fatigue, which is the main cause of service failures, is good design. In the case of welded joints, which are particularly susceptible to fatigue, design rules are available. However, their effective use requires a good understanding of fatigue and an appreciation of problems concerned with their practical application. Fatigue strength of welded structures has incorporates up-to-date design rules with high academic standards whilst still achieving a practical approach to the subject. The book presents design recommendations which are based largely on those contained in recent British standards and explains how they are applied in practice. Attention is also focused on the relevant aspects of fatigue in welded joints which are not yet incorporated in codes thus providing a comprehensive aid for engineers concerned with the design or assessment of welded components or structures. Background information is given on the fatigue lives of welded joints which will enable the engineer or student to appreciate why there is such a contrast between welded and unwelded parts, why some welded joints perform better than others and how joints can be selected to optimise fatigue performance.
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Welding engineers and students


Book information

  • Published: January 1991
  • Imprint: Woodhead Publishing
  • ISBN: 978-1-85573-013-7

Table of Contents

Part 1 Welded joints under fatigue loading: Fatigue failure; Significant features of welds in relation to fatigue; Factors which affect fatigue of welded joints; Fatigue of welded joints; Conclusions. Part 2 Design rules: Fatigue design rules for welded steel joints; Stresses used with the fatigue design rules; Significance of weld imperfections; Improving the fatigue strength of welded joints; Typical service failures.