United States Department of Transportation
i
Post-Crash Fire Forensic Analysis on Aerospace Composites – Literature Review
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2020-08-01
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[PDF-6.06 MB]
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Abstract:This report provides an initial literature review detailing the effects of fire on fiber-reinforced composites. This review summarizes the current state of experimental testing on composite materials with applications to commercial aircraft and ships. Additionally, this review includes fire damage mechanisms (i.e., matrix decomposition/pyrolysis, fibers ablation/sublimation, outgassing, delamination, and char formation) that occur when exposing a composite material to controlled open flame or heat fluxes. Non-destructive inspection (NDI) and destructive inspection techniques for assessing the severity and extent of fire damage were incorporated, along with modeling techniques used to predict progressive degradation in composite thermal and mechanical properties as a function of increasing temperature, heat flux, and exposure time. Physical char removal techniques (i.e., dry ice blasting) were studied and included in this literature review. Chemical, combined physical-chemical techniques and commercial cleaning solvents for removing char and other fire by-products were also reviewed.
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