|About this Abstract
||Materials Science & Technology 2012
||Surface Protection for Enhanced Materials Performance: Science, Technology and Applications
||Damage Evolution Model and Analysis of Thermal Barrier Coating System under in-Phase Thermo-Mechanical Fatigue Condition
||Rumi Kitazawa, Hideki Kakisawa, Ken Goto, Yutaka Kagawa
|On-Site Speaker (Planned)
Delamination behaviors of thermal barrier coating (TBC) from substrate under in-phase thermo-mechanical fatigue (TMF) cycles have been modeled. Stress and strain states during TMF test are calculated by using multiple layer model composed of coating layer and substrate. Creep behavior of the substrate is taken into consideration for the estimation of stress/strain change during TMF cycles. Delamination behavior after onset of the TBC layer cracking is analyzed using shear-lag model. Probability of interface delamination is estimated by calculating energy release rate at interface. Discussions and comments are made from a set of calculated results to avoid risky delamination behaviors under in-phase TMF condition.