Directional thermal conductivities of graphite/epoxy composites: 0/90 and 0/ ± 45/90 /

This work and a predecessor investigation form a two-part experimental research program on the effective thermal conductivities of graphite-epoxy composites - the type which is used extensively in aerospace structures and other applications. Effective thermal conductivities were determined from 90 F to 250 F for composites with fibers arranged in the 0/90 and 0/+ or - 45/90 patterns. The fiber content was 60% by volume. Analysis of the data in this work and the predecessor study established a correspondence principle between the directional effective conductivities of composites with uni-directional fibers and conductivities of other types of fiber arrangements. The correspondence principle allows an approximate but rapid estimate of the quasi-isotropic conductivities of the commonly used balanced-composites. Originator-supplied keywords included: Thermal conductivities, Graphite/Epoxy, and Test equipment."Final Report for Period June 1983 - August 1984,""January 1985."Includes bibliographical references (page 32)This work and a predecessor investigation form a two-part experimental research program on the effective thermal conductivities of graphite-epoxy composites - the type which is used extensively in aerospace structures and other applications. Effective thermal conductivities were determined from 90 F to 250 F for composites with fibers arranged in the 0/90 and 0/+ or - 45/90 patterns. The fiber content was 60% by volume. Analysis of the data in this work and the predecessor study established a correspondence principle between the directional effective conductivities of composites with uni-directional fibers and conductivities of other types of fiber arrangements. The correspondence principle allows an approximate but rapid estimate of the quasi-isotropic conductivities of the commonly used balanced-composites. Originator-supplied keywords included: Thermal conductivities, Graphite/Epoxy, and Test equipment.Research supported by the United States Air Force Wright Aeronautical Laboratories, and performed by Department of Mechanical Engineering, The Ohio State University, Columbua, Ohio, under Contract No.Mode of access: Internet