Finite element analysis on thermal performance of thermal barrier coatings

Thermal barrier coatings are improve the thermal performance of the structural members as insulating or minimizing the thermal effects on the structures. Its less thermal conductivity results higher thermal gradient at the barrier coatings and the less heat transfer to the main substrate results low thermal stress in the members. This paper presents analysis of the thermal barrier coatings effect on temperature and stress generation in the structures. The analysis considered based on axisymmetric conditions and the analysis is carried out in both steady state and transient conditions. The shape of Thermally Grown Oxide (TGO) formation on temperature and stress generatiadon on the overall structure is analysed. Along with this the effect of top coat properties on temperature and stress distribution is analyzed using finite element analysis.