Accession Number : ADA310039

Title :   Low Velocity Instrumented Impact Testing of Four New Damage Tolerant Carbon/Epoxy Composite Systems.

Descriptive Note : Technical paper,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HUNTSVILLE AL GEORGE C MARSHALL SPACE FLIGHT CENTER

Personal Author(s) : Lance, D. G. ; Nettles, A. T.

PDF Url : ADA310039

Report Date : JUL 1990

Pagination or Media Count : 40

Abstract : Low velocity drop weight instrumented impact testing was utilized to examine the damage resistance of four recently developed carbon fiber/epoxy resin systems. A fifth material, T300/934, for which a large data base exists, was also tested for comparison purposes. A 16-ply quasi-isotropic lay-up configuration was used for all the specimens. Force/absorbed energy-time plots were generated for each impact test. The specimens were cross-sectionally analyzed to record the damage corresponding to each impact energy level. Maximum force of impact versus impact energy plots were constructed to compare the various systems for impact damage resistance. Results show that the four new damage tolerant fiber/resin systems far outclassed the T300/934 material. The most damage tolerant material tested was the IM7/1962 fiber/resin system.

Descriptors :   *FIBER REINFORCED COMPOSITES, *CARBON FIBERS, *EPOXY COMPOSITES, *EPOXY RESINS, IMPACT TESTS, DAMAGE ASSESSMENT, IMPACT STRENGTH, PREPREGS, TOLERANCES(MECHANICS).

Subject Categories : Laminates and Composite Materials
      Plastics
      Containers and Packaging

Distribution Statement : APPROVED FOR PUBLIC RELEASE