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Design, Evaluation and Experimental Effort Toward Development of a High Strain Composite Wing for Navy AircraftThis design development effort addressed significant technical issues concerning the use and benefits of high strain composite wing structures (Epsilon(sub ult) = 6000 micro-in/in) for future Navy aircraft. These issues were concerned primarily with the structural integrity and durability of the innovative design concepts and manufacturing techniques which permitted a 50 percent increase in design ultimate strain level (while maintaining the same fiber/resin system) as well as damage tolerance and survivability requirements. An extensive test effort consisting of a progressive series of coupon and major element tests was an integral part of this development effort, and culminated in the design, fabrication and test of a major full-scale wing box component. The successful completion of the tests demonstrated the structural integrity, durability and benefits of the design. Low energy impact testing followed by fatigue cycling verified the damage tolerance concepts incorporated within the structure. Finally, live fire ballistic testing confirmed the survivability of the design. The potential benefits of combining newer/emerging composite materials and new or previously developed high strain wing design to maximize structural efficiency and reduce fabrication costs was the subject of subsequent preliminary design and experimental evaluation effort.
Document ID
19920023270
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bruno, Joseph
(Grumman Aerospace Corp. Bethpage, NY, United States)
Libeskind, Mark
(Naval Air Development Center Warminster, PA., United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1990
Publication Information
Publication: NASA. Langley Research Center, Eighth DOD(NASA)FAA Conference on Fibrous Composites in Structural Design, Part 1
Subject Category
Composite Materials
Accession Number
92N32514
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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