3D FE modelling and validation of frictional contact with partial slip in compression–shift–rolling evolution

October 9, 2015 in

Journal Paper

Zilong Wei
Zili Li
Zhiwei Qian
Rong Chen
Rolf Dollevoet

DOI 10.1080/23248378.2015.1094753


International Journal of Rail Transportation
Volume 4, Issue 1, Pages 20-36

Publishing date: October 9, 2015

finite element model, frictional contact, Instationary rolling, partial slip

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This paper presents a three-dimensional finite element approach capable of realistically simulating a wide range of contact types with partial slip. The approach is demonstrated by analysing the evolution of instationary contact from compression to shift till stationary rolling. It is systematically validated using classical solutions, i.e. Hertz theory for the frictionless normal problem, and Spence solution for frictional compression, Cattaneo solution for tangential shift and Kalker’s CONTACT for frictional rolling. The effect of plastic deformation on the distributions of pressure, adhesion–slip regions, surface shear traction and micro-slip is investigated. It is shown that plastic deformation makes the normal contact solution dependent on the tangential contact solution. Plastic deformation partly damps out the structure vibrations and significantly diminishes the magnitude of micro-slip. The presented model can be extended to simulate the start-off and braking of railway vehicles, to optimize the traction and braking control systems of trains, as well as to reduce the related damages.