Thermal conductivities and diffusivities of graphite-epoxy composites /
Lit S. Han and William F. Boyes.

Description

Main Author

Han, Lit S.

Related Names

Boyes, William F., author.
Air Force Wright Aeronautical Laboratories
Air Force Flight Dynamics Laboratory (U.S.)
Ohio State University. Department of Mechanical Engineering

Language(s)

English

Published

Wright-Patterson Air Force Base, Ohio : Flight Dynamics Laboratory, Air Force Wright Aeronautical Laboratories, Air Force Systems Command, United States Air Force, 1983.

Subjects

Fibrous composites > Fibrous composites / Thermal properties.
Graphite composites > Graphite composites / Thermal properties.
Epoxy compounds > Epoxy compounds / Thermal properties.

Summary

Transient heat conduction experiments were performed on graphite- epoxy composites with fibers oriented uni-directionally in the matrix. With the fiber axis arranged parallel or transverse to the 4 heat flow direction, effective thermal conductivities and diffusiveities in the three orthogonal directions were obtained. also determined in this work were the isotropic conductivity and diffusivity for the epoxy resin (Fibrite No. 934) as 0.136 BTU/ hr-F-ft. and 8.5. x 10 to the 7th power sec, respectively. A value of k=6.0 BTU/ hr-F-ft for carbon fobers (Hercules 3501-5A) in the axial direction was deduced. For the conductivity transverse to the fibers, a value of 2.4 BTU/hr-F-ft was obtained from the measured effective transverse conductivity values. The thermal capacities (pC) for the carbon fibers and resin used in this study were determined as 48.2 and 44.4 BTU/cu ft 3-F, respectively.

Note

"Report for period January 1982 - December 1982."
"February 1983."

Physical Description

87 pages : illustrations ; 28 cm.

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