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


Personal Author(s) : Fehrle, Albert C ; Gilbert, Gerald J ; Young, Edward C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/750133.pdf


Report Date : Jun 1972


Pagination or Media Count : 330


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- epoxy/titanium and fiberglas-epoxy/titanium 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.


Descriptors :   *COMPOSITE MATERIALS , *BONDED JOINTS , *BOLTED JOINTS , MANUFACTURING , LAMINATES , TITANIUM , EPOXY RESINS , GLASS TEXTILES , REINFORCED PLASTICS , JOINTS , BORON , ALUMINUM , GRAPHITE , NONDESTRUCTIVE TESTING


Subject Categories : Laminates and Composite Materials
      Couplers, Fasteners, and Joints


Distribution Statement : APPROVED FOR PUBLIC RELEASE