In recent years a strong interest in the application of damage tolerance techniques for the life of gas turbine engine discs has developed. Before the damage tolerance approach can be safely implemented, it requires sensitive and reliable crack detection techniques, operational loading information, and improved knowledge of fatigue crack growth and fracture under service conditions. This latter aspect is the main subject of an international test program, in which a number of laboratories from North America and Europe participate under Advisory Group for Aerospace Research and Development (AGARD) coordination. The first phase of the program is directed to test and specimen standardization and calibration of the different laboratories. The second phase will specifically address parameters relevant for real service operation like mission loading, sequence and dwell effects, temperature, fatigue threshold etc. The present paper discusses the background and first phase of the program.
AGARD (Advisory Group for Aerospace Research and Development) Cooperative Test Programme on Titanium Alloy Engine Disc Material
1985
14 pages
Report
No indication
English