This paper deals with the study of thermal effect in a rotating disk made of rubber and magnesium materials, having variable density parameters using transition theory. The tangential stress is maximum at the inner surface of the disk made of rubber in comparison to that made of magnesium material for the initial yielding stage. With the introduction of density parameter and thermal condition, the values of tangential stress decreased in the inner and outer surfaces for disks made of rubber and magnesium materials for the initial and fully plastic stage. With the influence of density parameter, the rotating disk requires lesser values of angular speed for the initial yielding and fully plastic stage.

本文使用过渡理论研究了由橡胶和镁材料制成的具有可变密度参数的旋转盘中的热效应。在初始屈服阶段，与镁材料制成的圆盘相比，橡胶制成的圆盘内表面的切向应力最大。随着密度参数和热条件的引入，橡胶和镁材料制成的磁盘在初始和完全塑性阶段的内表面和外表面的切向应力值减小。受密度参数的影响，转盘在初始屈服和完全塑性阶段需要较小的角速度值。