Finite Element Simulation on Thermal Fatigue of a Turbine Blade with Thermal Barrier Coatings
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2014年第4期
论文作者：L.Yang Q.X.Liu Y.C.Zhou W.G.Mao C.Lu
文章页码：371 - 380
摘 要：In this paper,a finite element model was developed for a turbine blade with thermal barrier coatings to investigate its failure behavior under cyclic thermal loading.Based on temperature and stress fields obtained from finite element simulations,dangerous regions in ceramic coating were determined in terms of the maximum principal stress criterion.The results show that damage preferentially occurs in the chamfer and rabbet of a turbine blade with thermal barrier coatings and its thermal fatigue life decreases with the increase of thermal stress induced by high service temperature.
L.Yang1,2，Q.X.Liu1,2，Y.C.Zhou1,2，W.G.Mao1,2，C.Lu3
1. Key Laboratory of Low Dimensional Materials & Application Technology(Ministry of Education),Xiangtan University2. Faculty of Materials,Optoelectronic & Physics,Xiangtan University3. Department of Mechanical Engineering,Curtin University
摘 要：In this paper,a finite element model was developed for a turbine blade with thermal barrier coatings to investigate its failure behavior under cyclic thermal loading.Based on temperature and stress fields obtained from finite element simulations,dangerous regions in ceramic coating were determined in terms of the maximum principal stress criterion.The results show that damage preferentially occurs in the chamfer and rabbet of a turbine blade with thermal barrier coatings and its thermal fatigue life decreases with the increase of thermal stress induced by high service temperature.
关键词：
