Date of download: 1/3/2018 Copyright © ASME. All rights reserved. From: Influence of the Fastening Modeling on the Vehicle-Track Interaction at Singular Rail Surface Defects J. Comput. Nonlinear Dynam. 2014;9(3):031002-031002-11. doi:10.1115/1.4025895 Figure Legend: The loaded configuration of a track when one wheel passes. Due to the rail bending and rotation under wheel load, and the rail inclination, the pressure distribution within a rail pad is nonuniform, and changes as the wheel moves. (a) In the longitudinal-vertical plane, (b) in the lateral-vertical plane.