Accession Number:

ADA064592

Title:

Dynamic Behavior of Aircraft Materials

Descriptive Note:

Final rept. 15 Feb-31 Dec 77

Corporate Author:

EFFECTS TECHNOLOGY INC SANTA BARBARA CA

Report Date:

1978-02-28

Pagination or Media Count:

129.0

Abstract:

Dynamic, high strain rate loading characterization of two composite materials that are being used today in the design of military and commercial aircraft was accomplished. Of particular concern was the response of such materials to nuclear blast and thermal environments. Primary emphasis is placed on the graphite epoxy designated AS3501-6, as would be used in body or wing panels. Of secondary emphasis is the quartz polyimide designated F178581, a radome material. Both materials were tested quasistatically and dynamically strain rates up to 18 inchesinsec, and from -65F to above resin cure temperature Cure temperatures of 350F for the graphite epoxy and 475F for the quartz polyimide. Test results indicated that both materials were stronger under dynamic loads than quasistatic loads. Additionally, at elevated temperatures the responses were dramatically different with the dynamic properties exhibiting little or no degradation due to temperature effects, while quasistatic properties decreased significantly with temperature. Author

Subject Categories:

  • Aircraft
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE