Impact Characterization of New Composite Materials.
NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIRCRAFT AND CREW SYSTEMS TECHNOLOGY DIRECTORATE
Pagination or Media Count:
Dropped-weight instrumented impact tests were used in conjunction with ultrasonic C-scan inspection to characterize the impact response of several new graphite-fiber composite material systems. The AS4Hercules 3501-6 graphiteepoxy was compared to the newer AS4Hercules 2220-1, Celion High StrainNarmco 5425 and IM6Narmco 5445C systems in the 250 F 121 C service category. Material tested in the XASHysol 9102 and HXHexcel 1516 graphitebismaleimides. A material ranking is given along with measured impact parameters and impact energy versus damage relationships. The impact behavior of all four 250 F 121 C were similar except IM65245C had the highest impact resistance. The bismaleimides had similar incipient damage levels as the epoxies but were more easily punctured. Impact resistance of the five 350 F 177 C systems were similar except T300130B had the lowest impact resistance. Keywords Impact tests Instrumented impact Graphite fiber Epoxy composites and Bismaleimide.
- Laminates and Composite Materials