Low Velocity Instrumented Impact Testing of Four New Damage Tolerant Carbon/Epoxy Composite Systems.
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HUNTSVILLE AL GEORGE C MARSHALL SPACE FLIGHT CENTER
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Low velocity drop weight instrumented impact testing was utilized to examine the damage resistance of four recently developed carbon fiberepoxy resin systems. A fifth material, T300934, 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. Forceabsorbed 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 fiberresin systems far outclassed the T300934 material. The most damage tolerant material tested was the IM71962 fiberresin system.
- Laminates and Composite Materials
- Containers and Packaging