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Title: Thermal response of radiantly heated Kevlar and graphite/epoxy composites

The response of Kevlar and graphite/epoxy composites subjected to simulated nuclear or laser thermal loads was measured. A solar furnace was used to radiantly heat samples at flux rates of up to 55 cal/sq cm per sec and total fluences of approximately 100 cal/sq cm. An iterative numerical technique was used to estimate the thermophysical properties of the materials by matching observed temperature-time histories with analytical predictions. Comparison of results obtained during this program with previously published data suggests that free stream velocity, which affects smoke blockage and char layer removal, is a critical design parameter. 8 references.
Authors:
Publication Date:
OSTI Identifier:
6183430
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Compos. Mater.; (United States); Journal Volume: 21
Research Org:
Kaman Sciences Corp., Burlington, MA
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ARAMIDS; THERMODYNAMIC PROPERTIES; COMPOSITE MATERIALS; ELECTRONIC EQUIPMENT; GRAPHITE; NUCLEAR WEAPONS; RADIANT FLUX DENSITY; SOLAR FURNACES; THERMAL STRESSES; CARBON; ELEMENTAL MINERALS; ELEMENTS; EQUIPMENT; FLUX DENSITY; FURNACES; MATERIALS; MINERALS; NONMETALS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; PLASTICS; SOLAR EQUIPMENT; STRESSES; SYNTHETIC MATERIALS; WEAPONS 360603* -- Materials-- Properties