Accession Number : ADA304484
Title : Exploratory Investigation of Two Resin-Matrix Composites Subjected to Arc-Tunnel Heating,
Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER
Personal Author(s) : Pittman, Claud M. ; Brown, Ronald D.
PDF Url : ADA304484
Report Date : MAY 1979
Pagination or Media Count : 31
Abstract : Flexure and short-beam shear specimens of a graphite-epoxy and a graphite-polyimide composite material were tested in an arc tunnel environment. The materials were subjected to seven heating rates from 12.5 to 308 kW/m2 for test times from 5 to 1000 seconds. The temperature response of the specimens was measured and the strength degradation caused by the various heating environments was determined.
Descriptors : *STRENGTH(MECHANICS), *GRAPHITE EPOXY COMPOSITES, *POLYIMIDE RESINS, SHEAR PROPERTIES, TEMPERATURE, DEGRADATION, BEAMS(STRUCTURAL), MATRIX MATERIALS, WIND TUNNEL TESTS, AERODYNAMIC HEATING, FLEXURAL PROPERTIES, ELECTRIC ARCS.
Subject Categories : Laminates and Composite Materials
Distribution Statement : APPROVED FOR PUBLIC RELEASE