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Materials, manufacturing and test development of a composite fan blade leading edge subcomponent for improved impact resistance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kohlman, Lee W. Roberts, Gary D. Ruggeri, Charles R. Sinnott, Matthew J. Handschuh, Katherine M. Miller, Sandi G. Pereira, J. Michael |
| Copyright Year | 2014 |
| Description | Application of polymer matrix composite materials for jet engine fan blades is becoming attractive as an alternative to metallic blades; particularly for large engines where significant weight savings are recognized on moving to a composite structure. However, the weight benefit of the composite of is offset by a reduction of aerodynamic efficiency resulting from a necessary increase in blade thickness; relative to the titanium blades. Blade dimensions are largely driven by resistance to damage on bird strike. Further development of the composite material is necessary to allow composite blade designs to approximate the dimensions of a metallic fan blade. The reduction in thickness over the state of the art composite blades is expected to translate into structural weight reduction, improved aerodynamic efficiency, and therefore reduced fuel consumption. This paper presents test article design, subcomponent blade leading edge fabrication, test method development, and initial results from ballistic impact of a gelatin projectile on the leading edge of composite fan blades. The simplified test article geometry was developed to realistically simulate a blade leading edge while decreasing fabrication complexity. Impact data is presented on baseline composite blades and toughened blades; where a considerable improvement to impact resistance was recorded. |
| File Size | 2405441 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150000887 |
| Archival Resource Key | ark:/13960/t2p60k883 |
| Language | English |
| Publisher Date | 2014-06-02 |
| Access Restriction | Open |
| Subject Keyword | Ballistic Impact Polymer Matrix Composites Nanocomposite Shape Memory Alloys Engine Design Projectiles Impact Tests Fan Blades Jet Engines Fabrication Thickness Composite Materials Impact Resistance Ply Orientation Manufacturing Aerodynamic Characteristics Leading Edges Thermography Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
