Figure 2
The illustration shows a 3 D wireframe mesh of an I-beam rail section in an x-y-z plane, with rectangular and triangular elements visible on the web, head, and base. The horizontal axis extending right is labeled x. The y-axis from the top front to inside the plan ranges from negative 0.5 times 10 to the 3rd power millimeters to 0.5 times 10 to the 3rd power millimeters with an interval of 0.5 times 10 to the 3rd power millimeters. The vertical (z) axis on the left ranges from negative 600 millimeters to negative 450 millimeters with an interval of 50 millimeters. The model is rendered in grayscale with grid lines and axis ticks, and the corner of the base is located near the coordinate (0, negative 0.5 times 10 to the 3rd power, negative 600).Rail mesh configurations. Source(s): Authors’ own work