Chapter 9 Shake, rattle and roll: Cyclic loading, damage and failure

Chapter contents

  • 9.1 Introduction and synopsis 188
  • 9.2 Vibration and resonance: the damping coefficient 188
  • 9.3 Fatigue 189
  • 9.4 Charts for endurance limit 197
  • 9.5 Drilling down: the origins of damping and fatigue 198
  • 9.6 Manipulating resistance to fatigue 200
  • 9.7 Summary and conclusions 202
  • 9.8 Further reading 202
  • 9.9 Exercises 202
  • 9.10 Exploring design with CES 204

German engineering was not always what it is today. The rapidly expanding railway system of the mid-19th century was plagued, in Germany and elsewhere, by accidents, many catastrophic, caused by the failure of the axles of the coaches. The engineer August Wöhler1 was drafted in to do something about it. It ...

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