Vol.26, No.1, 2026, pp. 65–69
https://doi.org/10.69644/ivk-2026-01-0065

This study examines the thermal behaviour of edge-loaded disks composed of polystyrene and natural rubber under varying temperatures (T = 0 and T = 0.5). The relationship between angular speed and radius ratio is analysed, revealing that natural rubber disks require higher angular speeds for initial yielding and plastic deformation compared to polystyrene. As the radius ratio increases, angular speed decreases, especially in fully plastic conditions. Elevated temperatures enhance angular speeds for both materials, indicating improved performance. These findings highlight the critical impact of material composition and thermal conditions on the mechanical response of rotating disks, offering valuable insights for engineering applications involving composites.

Keywords: • load • disk • yielding • polystyrene • rubber