Research Article

Durability Modeling of Environmental Barrier Coating (EBC) Using Finite Element Based Progressive Failure Analysis

Table 6

Summary of cycles to damage and associated damage modes for each EBC and substrate layer.

LayerCycle of damage initiationDamage mode

Top layer1Tension
Intermediate layer1Tension and shear
Bond layer1Tension and shear
SiC/SiC Macro: 1070Tension
Micro: 1090