Accession Number : ADA302463

Title :   A Probabilistic Analysis of Electrical Equipment Vulnerability to Carbon Fibers.

Descriptive Note : Technical memo.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER

Personal Author(s) : Elber, Wolf

PDF Url : ADA302463

Report Date : OCT 1980

Pagination or Media Count : 31

Abstract : The statistical problems of airborne carbon fibers falling onto electrical circuits have been idealized and analyzed. The probability of making contact between randomly oriented finite-length fibers and sets of parallel conductors with various spacings and lengths has been developed theoretically. The probability of multiple fibers joining to bridge a single gap between conductors, or forming continuous networks has been included. From these theoretical considerations, practical statistical analyses to assess the likelihood of causing electrical malfunctions have been produced. These statistics have been confirmed by comparison with results of controlled experiments. (MM)

Descriptors :   *PROBABILITY, *CARBON FIBERS, *MATRIX MATERIALS, *ELECTRICAL EQUIPMENT, *FAILURE(ELECTRONICS), HAZARDS, COMPOSITE MATERIALS, VULNERABILITY, PROBABILITY DENSITY FUNCTIONS, ELECTRICAL CONDUCTIVITY, STATISTICAL ANALYSIS, CIRCUIT BOARDS, MALFUNCTIONS, ELECTRIC CONDUCTORS.

Subject Categories : Electrical and Electronic Equipment
      Refractory Fibers
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE