Figure 13
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 across the primary mid-section and lower front of the bus. Left diagram (a): The contour shows mostly cyan and green in the main upper and lower regions, with blue patches and some yellow to red in the lower front and right edges. The color bar below spans from negative -0.032 (magenta) to 0.053 (red), labeled at negative 0.021, negative 0.011, 0.000, 0.010, 0.021, 0.032, and 0.042. Right diagram (b): The contour overlay is predominantly green across mid and upper areas, with small blue patches above the door and yellow-orange zones on the bottom right. The color bar spans from negative 0.010 (magenta) to 0.006 (red), labeled negative 0.008, negative 0.006, negative 0.004, negative 0.002, 0.000, 0.002, and 0.004.Comparison of the FEM contour of displacement strain for of the impactor, in mm, for the (a) original geometry and (b) optimised purposed geometry. Source(s): Authors’ own creation