Evaluation of thermal stress distribution with elasticoluminescent materials

Liu, W.; Nagatake, Taku ; Takase, Kazuyuki; Wu, C. X.*; Ono, Daisuke*; Yamada, Hiroshi*; Xu, C.-N.*

Elasticoluminescent materials, which is a kind of mechanoluminescence and has been used in visualization of stress distribution of constructions, such as a bridge or a building, under normal temperature condition. In this paper, the elasticoluminescent material is used under high temperature condition to seek the possibility of the visualization of the distribution of thermal stress. Test section was designed to be able to generate thermal stress. Luminescence data from the elasticoluminescent materials, strain data from strain sensors and temperature distribution data from thermograph were measured. Stress analysis was carried out for the test section with ABAQUS code. The comparison between luminescence data and the strain data show that the elasticoluminescent material can measure the distribution of thermal stress qualitative.