Accession Number:

ADA094679

Title:

Natural Exposure of Selected Graphite/Epoxy Composite Material Systems.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIRCRAFT AND CREW SYSTEMS TECHNOLOGY DIRECTORATE

Personal Author(s):

Report Date:

1980-07-31

Pagination or Media Count:

75.0

Abstract:

A study was made on selected graphiteepoxy composite materials exposed at different geographical locations. The Panama exposure site was more detrimental to reduced static strength than the Warminster, PA site. Coating was found to negate irreversible ultraviolet plus moisture degradation. Reversible elevated temperature moisture degradation was approximately 25 for matrix dominated properties. The T3005208 system offered the best resistance to degradation from natural exposure. The use of a 6 ply 0 deg. or - 45 deg panel loaded in sustained flexure was found to enhance scatter. Author

Subject Categories:

  • Laminates and Composite Materials
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE