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Durability of commercial aircraft and helicopter composite structuresThe development of advanced composite technology during the past decade is discussed. Both secondary and primary components fabricated with boron, graphite, and Kevlar composites are evaluated. Included are spoilers, rudders, and fairings on commercial transports, boron/epoxy reinforced wing structure on C-130 military transports, and doors, fairings, tail rotors, vertical fins, and horizontal stabilizers on commercial helicopters. The development of composite structures resulted in advances in design and manufacturing technology for secondary and primary composite structures for commercial transports. Design concepts and inspection and maintenance results for the components in service are reported. The flight, outdoor ground, and controlled laboratory environmental effects on composites were also determined. Effects of moisture absorption, ultraviolet radiation, aircraft fuels and fluids, and sustained tensile stress are included. Critical parameters affecting the long term durability of composite materials are identified.
Document ID
19830002973
Document Type
Conference Paper
Authors
Dexter, H. B. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 11, 2013
Publication Date
May 1, 1982
Publication Information
Publication: Army Materials and Mechanics Research Center Proc. of the Critical Rev.
Subject Category
COMPOSITE MATERIALS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.