Directional Thermal Conductivities of Graphite/Epoxy Composites: 0/90 and 0/ + or - 45/90

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1985
Accession Number
ADA152209

Entities

People

  • L. Glower
  • L. S. Han

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Directional
  • Epoxy Composites
  • Experimental Data
  • Governments
  • Graphite Epoxy Composites
  • Graphitic Materials
  • Heat Transfer
  • Heat Transmission
  • Materials
  • Orientation (Direction)
  • Specific Heat
  • Surface Temperature
  • Temperature Gradients
  • Thermal Conductivity
  • Thermal Diffusivity
  • Thermophysical Properties

Fields of Study

  • Materials science

Readers

  • Calculus or Mathematical Analysis
  • Reinforced Composite Materials
  • Technical Research and Report Writing.

Technology Areas

  • Space