Prof.Dr. David I. Fletcher

David is a graduate of Leeds University and received his PhD on crack growth in railway steels from University of Sheffield in 1999. He progressed from lecturer to a full professor at that same University.

David’s research crosses several areas of engineering design, tribology, system engineering and performance of materials. The majority of his work has application in the railway sector, and combines experimental and modelling approaches.

His research interests:

  • Railway rail-wheel interface
  • Overhead line electrification
  • Rail system design for safety
  • Network modelling and optimisation
  • David is Director of the Rail Innovation and Technology Centre with Network Rail, and leads Sheffield’s relationship with the UK Rail Research and Innovation Network (UKRRIN).
  • He is a an International Committee member for Conference on Contact Mechanics and Wear of Rail/Wheel Systems, and member of the Leonardo Tribology Centre.
     

Ir. Bart Schotsman

Bart Schotsman is a senior railway specialist employed by the Dutch rail infrastructure manager ProRail. He works on various topics related to railway rails, such as rail grade selection, rail maintenance, and rail inspection.

Besides maintenance management of the rail infrastructure, Bart also works on research projects to improve rail service life find the root cause of unexpected failures and the future perspective of rail steels, especially decarbonization and recycling.

What characterizes Bart's approach is that he combines both practical and theoretical perspectives.

To determine causes of failure, field observations are combined with data analysis and available scientific research results.