NDLI: Hybridized polymer matrix composites (Document No: 19800024981)

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Hybridized polymer matrix composites (Document No: 19800024981)

Content Provider	NASA Technical Reports Server (NTRS)
Author	House, E. E. Hoggatt, J. T. Symonds, W. A.
Copyright Year	1980
Description	The extent to which graphite fibers are released from resin matrix composites that are exposed to fire and impact conditions was determined. Laboratory simulations of those conditions that could exist in the event of an aircraft crash and burn situation were evaluated. The effectiveness of various hybridizing concepts in preventing this release of graphite fibers were also evaluated. The baseline (i.e., unhybridized) laminates examined were prepared from commercially available graphite/epoxy, graphite/polyimide, and graphite/phenolic materials. Hybridizing concepts investigated included resin fillers, laminate coatings, resin blending, and mechanical interlocking of the graphite reinforcement. The baseline and hybridized laminates' mechanical properties, before and after isothermal and humidity aging, were also compared. It was found that a small amount of graphite fiber was released from the graphite/epoxy laminates during the burn and impact conditions used in this program. However, the extent to which the fibers were released is not considered a severe enough problem to preclude the use of graphite reinforced composites in civil aircraft structure. It also was found that several hybrid concepts eliminated this fiber release. Isothermal and humidity aging did not appear to alter the fiber release tendencies.
File Size	41597664
Page Count	124
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800024981
Archival Resource Key	ark:/13960/t7sn50r43
Language	English
Publisher Date	1980-10-20
Access Restriction	Open
Subject Keyword	Composite Materials Polymer Matrix Composites Aircraft Accidents Impact Strength Flammability Fiber Composites Aging Materials Laminates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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