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Fatigue life assessment of cast nodular iron disc brakesfor railway vehicles

Published online by Cambridge University Press:  16 November 2007

C.-M. Sonsino  and
H. Hanselka
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Abstract

This paper deals with the influence of thermal strains/stresses causedby braking on the fatigue life of cast nodular iron disc brakes forrailway vehicles. The thermal stresses have been experimentallyderived and the durability has been assessed for a breaking loadspectrum comprising 6000 stop brakings from 200 km/h, 3000 stopbrakings from 160 km/h, 1500 stop brakings from 120 km/h and30000 usual brakings periods slowing down from 90 km/h.The fatigue critical areas have been identified and a redesign of thediscs made it possible to afford the requested service life of3×106 km.

Type
Research Article
Information
Metallurgical Research & Technology , Volume 104 , Issue 11: AciérieLaminageUtilisation de l'acier , November 2007 , pp. 562 - 568
Copyright
© La Revue de Métallurgie, 2007

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