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Failure of truck brake discs: A coupled numerical–experimental approach to identifying critical thermomechanical loadings

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2013
auteur(s) Collignon Mathilde; Cristol Anne-Lise; Dufrenoy Philippe; Desplanques Yannick; Balloy David
journal (abréviation) Tribology International (Tribol Int)
volume (numéro) 59
  
pages 114 – 120
résumé Premature failure is the major problem encountered in the operation of truck brake discs. The present study was carried out with the aim of developing brake discs with increased lifespans, so as to improve the safety and reliability of these components. To this end, two aspects, namely design and material, were investigated. In order to understand the different damage modes, we studied the behaviour of a grey cast iron brake disc combined with two semi-metallic pads under extreme conditions. A coupled numerical–experimental approach enabled us to determine the critical thermomechanical loadings associated with braking-induced metallurgical phase transformations.
mots clés Disc; Failure; Thermal; Mechanical
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