Samenvatting

A life assessment was performed on a fighter jet engine annular combustor liner, using a
combined fluid/structural approach. Computational fluid dynamics analyses were performed
to obtain the thermal loading of the combustor liner and finite element analyses
were done to calculate the temperature and stress/strain distribution in the liner during
several operating conditions. A method was developed to analyze a complete flight with
limited computational effort. Finally, the creep and fatigue life for a measured flight were
calculated and the results were compared to field experience data. The absolute number
of cycles to crack initiation appeared hard to predict, but the location and direction of
cracking could be correlated well with field data.