NDLI: Manufacture of fiber-epoxy test specimens: including associated jigs and instrumentation

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Manufacture of fiber-epoxy test specimens: including associated jigs and instrumentation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Mathur, S. B. Felbeck, D. K.
Copyright Year	1980
Description	Experimental work on the manufacture and strength of graphite-epoxy composites is considered. The correct data and thus a true assessment of the strength properties based on a proper and scientifically modeled test specimen with engineered design, construction, and manufacture has led to claims of a very broad spread in optimized values. Such behavior is in the main due to inadequate control during manufacture of test specimen, improper curing, and uneven scatter in the fiber orientation. The graphite fibers are strong but brittle. Even with various epoxy matrices and volume fraction, the fracture toughness is still relatively low. Graphite-epoxy prepreg tape was investigated as a sandwich construction with intermittent interlaminar bonding between the laminates in order to produce high strength, high fracture toughness composites. The quality and control of manufacture of the multilaminate test specimen blanks was emphasized. The dimensions, orientation and cure must be meticulous in order to produce the desired mix.
File Size	2086388
Page Count	22
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800015875
Archival Resource Key	ark:/13960/t6tx84p2t
Language	English
Publisher Date	1980-05-01
Access Restriction	Open
Subject Keyword	Composite Materials Concentration Composition Reinforcing Fibers Quality Control Specimens Fiber Composites Graphite-epoxy Composites Fiber Orientation Manufacturing Fracture Strength Laminates High Strength 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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