Reliability assessment on interfacial failure of thermal barrier coatings

0203 mechanical engineering 600 02 engineering and technology 620
DOI: 10.1007/s10409-016-0595-x Publication Date: 2016-08-23T12:54:49Z
ABSTRACT
Thermal barrier coatings (TBCs) usually exhibit an uncertain lifetime owing to their scattering mechanical properties and severe service conditions. To consider these uncertainties, a reliability assessment method is proposed based on failure probability analysis. First, a limit state equation is established to demarcate the boundary between failure and safe regions, and then the failure probability is calculated by the integration of a probability density function in the failure area according to the first- or second-order moment. It is shown that the parameters related to interfacial failure follow a Weibull distribution in two types of TBC. The interfacial failure of TBCs is significantly affected by the thermal mismatch of material properties and the temperature drop in service.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (44)
CITATIONS (13)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....