This study presents numerical analyses of transient temperature and thermally induced stress distributions in a stationary hollow steel disk partially heated by a moving uniform heat source from its outer surface under stagnant ambient conditions. The moving heat source applied on a certain angular segment of the processed surface rotates with a constant angular speed (omega). The peak levels of the temperature gradients and the thermal stress ratios at the heated segments do not rise very much after 2-3 cycles. When the value of omega is increased, the maximum effective thermal stress ratio can he decreased in a considerable amount.
This study presents numerical analyses of transient temperature and thermally induced stress distributions in a stationary hollow steel disk partially heated by a moving uniform heat source from its outer surface under stagnant ambient conditions. The moving heat source applied on a certain angular segment of the processed surface rotates with a constant angular speed (?). The peak levels of the temperature gradients and the thermal stress ratios at the heated segments do not rise very much after 2–3 cycles. When the value of ? is increased, the maximum effective thermal stress ratio can be decreased in a considerable amount.
