Accession Number : AD0777074

Title :   Third Phase Fiber Addition to Advanced Graphite Composites for Improvement of Impact Strength.

Descriptive Note : Final rept. May 73-Mar 74,


Personal Author(s) : Perry,J. L. ; Kirkhart,J. L. ; Adams,D. F.

Report Date : 01 MAR 1974

Pagination or Media Count : 194

Abstract : Notched and unnotched instrumented Charpy impact data and tensile, flexural, compressive and shear property data of multi-angle and hybrid graphite reinforced epoxy resin composites are presented from the perspective of property trade-off studies. Two Modulite 5206 basic graphite fiber orientations are evaluated; composites in which the filament repeating unit direction is 1) 0 degrees, and 2) 0 degrees, + 45 degrees, -45 degrees and 90 degrees. The hybrid configurations are fabricated using the basic graphite orientations with discrete amounts of supplementary third phase fibers (glass, Nomex, and PRD-49 Type III) interspersed in the composites in 0 degree and in -45 degree and + 45 degree directions. (Author, modified-PL)

Descriptors :   *Fiber reinforced composites, Graphite, Epoxy resins, Matrix materials, Epoxy compounds, Composite materials, Fiberglass, Nylon, Orientation(Direction), Impact strength, Mechanical properties, Fiber reinforcement, Fibers

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE