Accession Number:

ADA207912

Title:

Durability of Graphite/Epoxy Honeycomb Specimens with Representative Damage and Repairs

Descriptive Note:

Interim rept. on environmental program

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s):

Report Date:

1988-07-01

Pagination or Media Count:

38.0

Abstract:

The introduction of FA-18 aircraft into RAAF service has brought a new era of materials technology to Australia for example the FA-18 incorporates significant quantities of graphiteepoxy GrEp composite materials which form 34 of the external surface area of the aircraft. Major components constructed from GrEp are the main wing skins, trailing edge flaps, vertical tail skins, horizontal stabilators, speed brake and access doors. The main wing and vertical tail skins are thick laminates up to 23mm used in a monolithic form bolted to underlying aluminum alloy substructure, while the other composite components employ a sandwich form of construction in which thin laminates 2 to 30 plies are adhesively bonded to an aluminum honeycomb core. This report, on work performed as part of a RAAF sponsored ARL task Dr. A.A. Baker - Task Manager, details an experimental program set up to investigate the effect of representative environments on delamination growth in GrEp structures representative of th FA-18.

Subject Categories:

  • Attack and Fighter Aircraft
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE