Figure 6
The front view of a color-mapped stress distribution of a wheel on a rail in an x-y-z plane, showing a wheel-rail interface in contact. Green colors dominate most of the objects, while intense red and blue regions indicate high-stress zones across the wheel-rail interface and rail web. The vertical color scale bar on the right ranges from negative 1 times 10 to the 7th power (blue) at the bottom to 1 times 10 to the 7th power (red) at the top. Axes x, y, and z are labeled in the left corner of the image. The x-axis from the bottom front to inside the plan ranges from negative 50 millimeters to 50 millimeters with an interval of 50 millimeters. The horizontal axis extending right is labeled y. The vertical (z) axis on the right ranges from negative 1.92 times 10 to the 9th power to 3.29 times 10 to the 8th power (Newtons per square meter). A few concentrated spots on the middle part of the rail web show intense red and blue stresses, especially at the edges, and a yellow spot on the contact region. Grid lines and axis ticks are visible in the background.y component of orbital stress tensor. Source(s): Authors’ own work