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Impact Response of Composite Fuselage Frames
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English
Abstract
Graphite-epoxy frames were drop tested onto a concrete floor to simulate crash loadings. The frames have Z-shaped cross sections typical of designs often proposed for fuselage structure of advanced composite transports. A diameter of six feet for the frames was chosen to reduce specimen fabrication costs and to facilitate testing. Accelerometer, strain gage, and photographic measurements are presented which characterize the impact behavior of frames with differing masses to represent structural or seat/occupant masses. Failures of the graphite-epoxy frames involved complete separations through the cross section. All damage to the lightly loaded composite frames was confined to an area close to the impact point. Subsequent failures left and right of the impact point occurred for the more heavily loaded specimens.
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Authors
- Richard L. Boitnott - U.S. Army Aviation Research and Technology Activity Langley Research Center Hampton, VA
- Edwin L. Fasanella - PRC Kentron Aerospace Technologies Div. Hampton, VA
- Lisa E. Calton - PRC Kentron Aerospace Technologies Div. Hampton, VA
- Huey D. Carden - NASA Structures and Dynamics Div. Langley Research Center Hampton, VA
Topic
Citation
Boitnott, R., Fasanella, E., Calton, L., and Carden, H., "Impact Response of Composite Fuselage Frames," SAE Technical Paper 871009, 1987, https://doi.org/10.4271/871009.Also In
References
- Farley G. L. “Energy Absorption of Composite Materials.” Journal of Composite Materials 17 May 1983
- Lowry, D. W. Krebs, N. E. Dobyns, A. L. “Design, Fabrication and Test of Composite Curved Frames for Helicopter Fuselage Structure,” October 1984
- Jackson, A. C. Wittlin, G. Balena, F. J. “Transport Composite Fuselage Technology Impact Dynamics and Acoustic Transmission.” Proceedings of Seventh DOD/NASA Conference on Fibrous Composites in Structural Design June 17-20 1985 Denver, Colorado
- Williams, M. S. Hayduk, R. J. “Vertical Drop Test of a Transport Fuselage Section Located Forward of the Wing.” NASA Technical Memorandum 85679 August 1983
- Fasanella, E. L. Hayduk, R. J. Robinson, M. Widmayer, E. “Analysis of a Transport Fuselage Section Drop Test.” Research in Structures and Dynamics 1984 347 368
- Carden, H. D. “Impact Dynamics Research on Composite Transport Structures,” NASA Technical Memorandum 83691 March 1985
- Pifko, A. B. Winter, R. Ogilvie, P. L. “DYCAST - A Finite Element Program for the Crash Analysis of Structures.” NASA Contractor Report 4040 January 1987