Accession Number : AD0268612

Title :   POTENTIAL OF FILAMENT WOUND COMPOSITES

Corporate Author : WHITTAKER CORP SAN DIEGO CALIF NARMCO RESEARCH AND DEVELOPMENT DIV

Personal Author(s) : DUFT,B. ; THOMPSON,C.E.

Report Date : NOV 1961

Pagination or Media Count : 50

Abstract : A study on the effect of coupling agents, with and without coatings, on the tensile strength of E glass fiber was conducted. The fibers were tested before and after water immersion of 1 and 7 days. Tests of coated fibers subjected to elevated temperatures were conducted. A preliminary evaluation of the single discontinuous fiber tensile tests previously reported was completed. Indications are that mechanisms of failure can be predicted reasonably well for this case, provided material properties are known. A omparion of the test data with developed theory is presented and shows good correlation. Test data for continuous parallel fibers, discontinuous parallel fibers, and parallel fibers, one continuous and the other discontinuous, are presented. Stress distribution by photoelastic measurement as well as stress plots along the fiber are also included. Indications are that theoretical predictions agree well with experimental results. Studies of the fractured surfaces of these specimens were made. Photomicrographs of these failures are presented which show interesting fracture phenomena. (Author)

Descriptors :   *BEAMS (ELECTROMAGNETIC), *BEAMS (STRUCTURAL), *FILAMENT WOUND CONSTRUCTION, *REINFORCING MATERIALS, BONDING, CHROMIUM COMPOUNDS, COATINGS, COMPLEX COMPOUNDS, COMPOSITE MATERIALS, DEFORMATION, EPOXY RESINS, FIBERS, FRACTURE (MECHANICS), GLASS TEXTILES, HUMIDITY, LAMINATES, PHOTOELASTICITY, PLASTICS, SHEAR STRESSES, SILANES, STRESSES, TENSILE PROPERTIES, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE