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Record Details

Record 42 of 46165
High temperature resin matrix composites for aerospace structures
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Author and Affiliation:
Davis, J. G., Jr.(NASA Langley Research Center, Hampton, VA, United States)
Abstract: Accomplishments and the outlook for graphite-polyimide composite structures are briefly outlined. Laminates, skin-stiffened and honeycomb sandwich panels, chopped fiber moldings, and structural components were fabricated with Celion/LARC-160 and Celion/PMR-15 composite materials. Interlaminar shear and flexure strength data obtained on as-fabricated specimens and specimens that were exposed for 125 hours at 589 K indicate that epoxy sized and polyimide sized Celion graphite fibers exhibit essentially the same behavior in a PMR-15 matrix composite. Analyses and tests of graphite-polyimide compression and shear panels indicate that utilization in moderately loaded applications offers the potential for achieving a 30 to 50 percent reduction in structural mass compared to conventional aluminum panels. Data on effects of moisture, temperature, thermal cycling, and shuttle fluids on mechanical properties indicate that both LARC-160 and PMR-15 are suitable matrix materials for a graphite-polyimide aft body flap. No technical road blocks to building a graphite-polyimide composite aft body flap are identified.
Publication Date: Jan 01, 1980
Document ID:
19800019940
(Acquired Nov 14, 1995)
Accession Number: 80N28441
Subject Category: COMPOSITE MATERIALS
Document Type: Conference Paper
Publication Information: Selected NASA Res. in Composite Mater. and Struct.; p 143-182
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Langley Research Center; Hampton, VA, United States
Description: 40p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: AIRCRAFT STRUCTURES; GRAPHITE-EPOXY COMPOSITES; LAMINATES; POLYMER MATRIX COMPOSITES; SANDWICH STRUCTURES; SPACECRAFT STRUCTURES; COMPRESSIVE STRENGTH; FLAPS (CONTROL SURFACES); POLYIMIDES; SHEAR STRENGTH; STRUCTURAL WEIGHT; WEIGHT REDUCTION
Imprint And Other Notes: In its Selected NASA Res. in Composite Mater. and Struct. p 143-182 (SEE N80-28436 19-24)
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