Abstract
An infrared radiation heating method was proposed previously as a new technique for estimating thermal shock parameters directly from electrical power charge. The method uses a thin-circular disk heated by infrared rays at the central area with a constant heat flux. In this report, temperature and stress distributions in the disk are analyzed numerically considering the temperature-dependent material properties of alumina and float glass, namely, temperature-dependent thermal conductivity and thermal diffusivity for the temperature distribution and temperature-dependent thermal expansion for the stress distribution. Furthermore, stress intensity factors are analyzed for a disk with an edge crack subjected to a constant heat flux. These results show that the temperature dependence of material properties has siginificant effects on the temperature and stress distributions.
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