Allied Signal CMC Combustor Progressive Failure Analysis Combined Load and Temp (1800°F to 2000°F), After Test Run of 11.5 Hours in JTAGGI+ Engine

0.2291 Longitudinal Tensile

0.1874 Longitudinal Compressive

0.2216 Transverse Tensile

0.0555 Transverse Compressive

0.0364 Normal Tensile

0.0002 Normal Compressive

0.2308 In Plan Shear

0.0293 Transverse Normal Shear

0.0097 Longitudinal Normal Shear

(% Failure Contribution)

Failure Modes

Allied Signal Ceramic Combustor

Catastrophic Failure of 40% Life Cycle Was Observed

Failure Location

Dominant Damaged Modes of Failure Were Identified

Longitudinal Tensile

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