Figure 4
The illustration shows a 3-D C A D rendering of a truck cab viewed from the front-left, highlighting the steel tube and panel framework in multiple colors. The model displays the entire structural skeleton, including the roof (pink), side panels, windshield (grey and transparent), floor structure, and cross members. Various geometric shapes and colors distinguish different materials, manufacturing methods, or component types. The image focuses on the cab’s internal structure and does not include wheels, engine, or chassis, providing a clear view of the underlying crash safety and assembly-relevant framework.Replacement of the red components made of S335 alloy steel with DP780 alloy steel. Source(s): Authors’ own creation