Figure 12
The illustration consists of two schematic diagrams of a bus side view, showing colored contour distributions mapped onto the bus structure. Both diagrams have axes indicators at the bottom left (x-axis in red, y-axis in green, and z-axis in blue). Both diagrams show a semi-transparent gray bus framework with colored contour overlays mapped onto the center and front sections of the bus profile. Left diagram (a): Most overlay areas are in red and orange, especially in the top and lower cabin, with small curving streaks of yellow and orange in the front. The color bar below shows numerical values from negative 0.164 (magenta) to 0.005 (red), with ticks at negative 0.143, negative 0.122, negative 0.080, negative 0.058, negative 0.037, and negative 0.016. Right diagram (b): The overlay shows primarily green throughout, with scattered blue spots in the upper and mid-regions and some yellow-orange along the bottom right. The color bar below spans from negative 0.005 (magenta) to 0.006 (red), with labeled ticks at negative 0.004, negative 0.002, negative 0.001, 0.000, 0.002, 0.003, and 0.005.Comparison of the FEM contour of strain for of the impactor, in mm, for the (a) original geometry and (b) optimised purposed geometry. Source(s): Authors’ own creation