You need JavaScript to view this

Fundamental investigation on the impact strength of hollow fan blades

Technical Report:

Abstract

Models of hollow fan blades were made and tested to prove that their strength is sufficient for use in real engines. The hollow blades were fabricated by diffusion bonding of two titanium alloy (6Al-4V-Ti) plates, one of which had three spanwise stiffners and the other being flat plate. The model as a nontwisted tapered blade. Impact tests were carried out on the hollow fan blade models in which the ingestion of a 1.5 pounds bird was simulated. Solid blades with the same external form were also tested by similar methods for comparison. The results of these tests show that properly designed hollow blades have sufficient stiffness and strength for use as fan blades in the turbo-fan engine.
Publication Date:
Jan 01, 1985
Product Type:
Technical Report
Report Number:
N-86-20864; NAL-TR-879
Reference Number:
EDB-86-109162
Subject:
33 ADVANCED PROPULSION SYSTEMS; 36 MATERIALS SCIENCE; TURBINE BLADES; IMPACT STRENGTH; ALUMINIUM ALLOYS; DIFFUSION WELDING; IMPACT TESTS; TITANIUM BASE ALLOYS; TURBOFAN ENGINES; VANADIUM ALLOYS; ALLOYS; ENGINES; FABRICATION; JOINING; MATERIALS TESTING; MECHANICAL PROPERTIES; MECHANICAL TESTS; TESTING; TITANIUM ALLOYS; WELDING; 330103* - Internal Combustion Engines- Turbine; 360103 - Metals & Alloys- Mechanical Properties
OSTI ID:
5603392
Research Organizations:
National Aerospace Lab., Chofu, Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Availability:
NTIS, PC A02/MF A01.
Submitting Site:
STAR
Size:
Pages: 23
Announcement Date:

Technical Report:

Citation Formats

Ikeda, T, Miyachi, T, and Sofue, Y. Fundamental investigation on the impact strength of hollow fan blades. Japan: N. p., 1985. Web.
Ikeda, T, Miyachi, T, & Sofue, Y. Fundamental investigation on the impact strength of hollow fan blades. Japan.
Ikeda, T, Miyachi, T, and Sofue, Y. 1985. "Fundamental investigation on the impact strength of hollow fan blades." Japan.
@misc{etde_5603392,
title = {Fundamental investigation on the impact strength of hollow fan blades}
author = {Ikeda, T, Miyachi, T, and Sofue, Y}
abstractNote = {Models of hollow fan blades were made and tested to prove that their strength is sufficient for use in real engines. The hollow blades were fabricated by diffusion bonding of two titanium alloy (6Al-4V-Ti) plates, one of which had three spanwise stiffners and the other being flat plate. The model as a nontwisted tapered blade. Impact tests were carried out on the hollow fan blade models in which the ingestion of a 1.5 pounds bird was simulated. Solid blades with the same external form were also tested by similar methods for comparison. The results of these tests show that properly designed hollow blades have sufficient stiffness and strength for use as fan blades in the turbo-fan engine.}
place = {Japan}
year = {1985}
month = {Jan}
}