Measurement of Temperature Distribution and Thermal Stress Analysis in SN Plate

摘要

One form of damage on SN plate is cracking. It is necessary to determine the temperature and stress distribution within SN plate in order to eliminate such cracking. We confirm that the simulated results of temperature distribution by FEM (finite element method) in the heating experiment agrees with the actually measured temperature distribution results. Furthermore, we analyze thermal stress (distribution) analysis by FEM under operating conditions. As a result, the analysis shows that the numerical estimation for crack formation coincides well with the actual crack profiles. The location of the cracking depends on the confinement condition of the SN plate. We demonstrate that four-sided confinement was the optimal for the elimination of cracking.