OPTIMUM FILAMENT DIAMETERS.
Annual summary rept. for 1 Oct 63-15 Sep 64,
WHITTAKER CORP SAN DIEGO CALIF NARMCO RESEARCH AND DEVELOPMENT DIV
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A program to investigate the structural behavior of large diameter 5-mil E-glass fiber composites under complex stress systems, primarily those under bidirectional compression is described. For design use, material properties of 5-mil, E-glass fiber composites for three different resin contents were experimentally determined. Filamentwound cylinders solid wall, ring-stiffened, and sandwich construction representing subscale hulls of submersible structure were then designed, fabricated, and hydrostatically tested. The objective of the program was to determine if the large, unidirectional compressive strength potential of 5-mil glass fiber composites could be utilized in the design of the hull of an underwater vehicle. Author