Effect of stress raisers on the load-carrying capacity of compressor vanes made of titanium alloys

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Strength Mater. (Engl. Transl.); (United States)

OSTI ID:5702479

Nalimov, Y S; Gorodetskii, S S; Omel'chenko, V V

The basic factors that ensure the reliability and durability of the operating vanes of modern gas turbine engines (GTE) are discussed. The authors investigate operating GTE vanes of two types: first low pressure compressor (LPC) stage and fourth LPC stage of a type-I engine; and the first compressor stage of a type-II engine. The endurance limits of compressor vanes have been reduced by approximately 2% for vanes of type-I engines and by 42% for vanes of type-II engines due to the presence of stress raisers, whose dimensions and locations on the vane blade were chosen on the basis of an analysis of damage sustained in operation.

• Research Organization: Institute of Strength Problems, Academy of Sciences of the Ukranian SSR
• OSTI ID: 5702479
• Journal Information: Strength Mater. (Engl. Transl.); (United States), Journal Name: Strength Mater. (Engl. Transl.); (United States) Vol. 17:5; ISSN SMTLB
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
COMPRESSOR BLADES
DAMAGE
DEFECTS
DESTRUCTIVE TESTING
ENGINES
FAILURE MODE ANALYSIS
GAS TURBINE ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS TESTING
MECHANICAL TESTS
MECHANICAL VIBRATIONS
SERVICE LIFE
STRESS ANALYSIS
STRESS INTENSITY FACTORS
STRESSES
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
TITANIUM ALLOYS