Accession Number:

ADA267718

Title:

Impact of Materials Defects on Engine Structures Integrity (L'Impact des Defauts des Materiaux sur l'Integrite des Structures des Moteurs)

Descriptive Note:

Corporate Author:

ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE)

Personal Author(s):

Report Date:

1993-04-01

Pagination or Media Count:

118.0

Abstract:

Even though we have made significant progress in increasing reliability of critical components of aeroengines, we have far too many failures in both military and commercial engines. As well, maintenance costs, warranty costs spares and liability costs are too high. In addition, designers of aeroengines will undoubtedly always seek to increase performance and efficiency as well to increase the life of components. At the same time, it is desirable to decrease the need for inspections of components because, in a sense, this adds no value to the product and also causes down time. Designers attempt to expand performance and increase efficiency by increasing combustion and turbine inlet temperatures and increasing operating stressstrains on the components by either increasing material strength or decreasing component size weight or both. As well, it is desirable to minimize risk of unexpected failure while at the same time increasing component life

Subject Categories:

  • Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE