Accession Number : ADD008266

Title :   Composite Structures.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Crane,Robert L

Report Date : 10 Mar 1981

Pagination or Media Count : 5

Abstract : A composite structure is fabricated from fiber-reinforced tape, segments of the tape being stacked one upon another so as to form a plurality of plies. A boron fiber is positioned adjacent to or along an edge of each of the tape segments. Because of the X-ray opacity of the boron fiber's tungsten boride core and because the boron fiber will break when a ply is damaged, damage to the composite structure can be detected by radiographic examination. (Author)

Descriptors :   *Patents, *Composite structures, *Fiber reinforcement, *Structural analysis, *Radiography, Tapes, Pile structures, Mechanical properties, Defects(Materials), Boron

Subject Categories : Structural Engineering and Building Technology
      Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE