Accession Number:

AD0750133

Title:

Development of an Understanding of the Fatigue Phenomena of Bonded and Bolted Joints in Advanced Filamentary Composite Materials. Volume 2. Fabrication, Inspection and Testing

Descriptive Note:

Final technical rept. Aug 1970-Apr 1972

Corporate Author:

LOCKHEED-GEORGIA CO MARIETTA

Report Date:

1972-06-01

Pagination or Media Count:

330.0

Abstract:

TR-72-64-Vol-2See also Volume 1, AD-750 132 and Volume 3, AD-750 134. bonded joints, composite materials, bolted joints, composite materials, composite materials, joints, reinforced plastics, boron, epoxy resins, titanium, aluminum, graphite, glass textiles, laminates, manufacturing, nondestructive testingboron reinforced composites, fiberglass reinforced plastics, graphite reinforced composites Fabrication and inspection methods were established which resulted in specimens of uniform high quality fabricated to close tolerances. Both bonded and bolted joints of widths from one to ten inches were evaluated. Primary emphasis was on joints in boron-epoxy, and between boron-epoxy and titanium or aluminum. However, limited evaluations of graphite- epoxytitanium and fiberglas-epoxytitanium were included. Joint configurations evaluated were single and double splice butt joints boron-epoxy to metal stepped single scarf joints and surface to understructure attachments. All laminates and specimens were inspected non- destructively. Base material properties and process control measures were verified by destructive testing. Developing testing techniques and actual specimen testing was a major portion of the program.

Subject Categories:

  • Laminates and Composite Materials
  • Couplers, Fasteners and Joints

Distribution Statement:

APPROVED FOR PUBLIC RELEASE