Superhybrid Composite Blade Impact Studies

[+] Author and Article Information
C. C. Chamis, R. F. Lark, J. H. Sinclair

National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135

J. Eng. Power 103(4), 731-738 (Oct 01, 1981) (8 pages) doi:10.1115/1.3230796 History: Received November 26, 1980; Online September 28, 2009


An investigation was conducted to determine the feasibility of superhybrid composite blades for meeting the mechanical design and impact resistance requirements of large fan blades for aircraft turbine engine applications. Two design concepts were evaluated: (1) leading edge spar (TiCom) and (2) center spar (TiCore), both with superhybrid composite shells. The investigation was both analytical and experimental. The results obtained show promise that superhybrid composites can be used to make light-weight, high-quality, large fan blades with good structural integrity. The blades tested successfully demonstrated their ability to meet steady-state operating conditions, overspeed, and small bird impact requirements.

Copyright © 1981 by ASME
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