Accession Number : ADA299517

Title :   Thermal Radiation Transmission Through Composite Material.

Descriptive Note : Final rept. Jun-Jul 94,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Loucks, Richard B.

PDF Url : ADA299517

Report Date : JUN 1995

Pagination or Media Count : 79

Abstract : On 10 June 1993, the Defense Nuclear Agency (DNA) Field Command at White Sands Missile Range conducted a Thermal Radiation Simulator (TRS) test for the Naval Surface Warfare Center (NSWC) during project MINOR UNCLE. The NSWC was interested in measuring the radiant thermal energy absorbed by a fiberglass panel during a simulated nuclear weapon event. The resultant thermocouple data showed an unusual initial high-temperature rise and fall, followed by the expected conductive heating. The initial transient was theorized to be the result of thermal radiation transmitted through the panel. To investigate this theory, NSWC prepared several more panels of different thicknesses, preinstrumented with thermocouples and strain gages for testing with a U.S. Army Research Laboratory (ARL) TRS. ARL also provided additional instrumentation to measure thermal radiation on the front surface as well as behind the panel. The results showed that there was direct heating of the rear of the composite panel by thermal radiation. The quantity of heat transmission through the panel and the point of ignition of the front surface of the panel were determined. Smoke and charring of the front surface protected the panel from further heating and possible destruction. jgp.3

Descriptors :   *NUCLEAR WEAPONS, *COMPOSITE MATERIALS, *THERMAL RADIATION, SIMULATORS, SIMULATION, MEASUREMENT, RADIATION, THICKNESS, FIBERGLASS, ARMY RESEARCH, CONDUCTIVITY, HIGH TEMPERATURE, PANELS, COMPOSITE STRUCTURES, SMOKE, HEATING, STRAIN GAGES, IGNITION, THERMOCOUPLES, CHARRING, HEAT TRANSMISSION, FRONT ENDS AND SURFACES.

Subject Categories : Laminates and Composite Materials
      Space Warfare
      Nuclear Physics & Elementary Particle Physics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE