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Modelling adhesion enhancement in wheel-rail contact triggered by sand particles

Lookup NU author(s): Bin Zhang, Dr Sadegh NadimiORCiD



This is the authors' accepted manuscript of a conference proceedings (inc. abstract) published in its final definitive form in 2022. For re-use rights please refer to the publishers terms and conditions.


Sanding is widely used in train operation to enhance the adhesion level in both braking and acceleration conditions. By employing cohesive interface elements (CIEs), a finite element method (FEM) is developed in this study to explore the adhesion enhancement triggered by sand particles. A wheel-rail model is developed and four different particle sizes areselected to observe the influence of fracture behaviour on the traction before and after the particle breakage. The coefficient of traction from the simulations are calculated and analysed. The results indicate that the adhesionenhancement is not affected by particle size, but the amount of fragments generated and the coefficient of traction is induced by wheel rolling on particle fragments.

Publication metadata

Author(s): Zhang B, Nadimi S, Lewis R

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2022)

Year of Conference: 2022

Online publication date: 04/09/2022

Acceptance date: 04/09/2022

Date deposited: 27/03/2024

ePrints DOI: 10.57711/jc2p-ff93