Thermal Stresses in Thick Walled Cylinders Subjected to a Periodic Moving Heat Source

This paper presents numerical investigation on thermally developed stresses in a titanium cylinder when heated internally by a constant speed moving ring heat source, which has a periodic content. Effects of moving heat source speed on temperature gain and thermal stress distribution are investigated. This research reveals that a nonlinear relation exists between speed of moving heat source and both the temperature gain and thermal stress levels at the cylinder inner wall. Speeds larger than 20 and less than 45 mm/s are found to cause higher temperature gain and stress level.