Accession Number : AD0286894

Title :   POTENTIAL OF FILAMENT WOUND COMPOSITES

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

Personal Author(s) : STEVENS,D. ; OTTO,W.

Report Date : 30 SEP 1962

Pagination or Media Count : 15

Abstract : David Taylor Model Basin, Washington, D. C. EXPLORATORY TESTS OF LONG GLASS CYLINDERS UNDER EXTERNAL HYDROSTATIC PRESSURE, by Martin A. Krenzke. Aug 62, 15p. incl. illus. tables, 8 refs. (Rept. no 1641) Unclassified report DESCRIPTORS: *Submarine hulls, *Hydrostatic pressure, *Glass, *Elasticity, *Load distribu tion, Cylindrical bodies, Struc ural shells. The potential of glass as a hull materi l for hydro pace vehicles was inv stigated by determining the hydrostatic strength of 20 long cylinders of No. 7740 glass. The experiment l collapse pressures, which ranged between 2000 nd 15,000 psi, were in excellent gr ement with classical theory for elastic buckling of long cylinders. Calculations were based on minimum measured thicknesses. Although all failures appeared to initiate in the elastic buckling range, m ximum circumferential stresses of about 1 ,000 psi were r ached. T I HIGH TRENGTH COUPLED WITH A RELATIVELY LOW WEIGHT MAKES GL SS APPEAR VERY ATTRACTIVE FOR SOME DE P-DEPTH APPLICATIONS. Although these tests were conducte on long unstiffened cylin ers, calculations indicate that glass spheres have a potential of demonstrating higher strength-to-w ight ratios than is attainable by any other type hull using currently available materials. (Author)

Descriptors :   *COMPOSITE MATERIALS, *FILAMENT WOUND CONSTRUCTION, *GLASS TEXTILES, FAILURE (MECHANICS), HEATING, HUMIDITY, HYDRAULIC EQUIPMENT, PHOTOELASTICITY, PLASTICS, SCHEDULING, STRESSES, TENSILE PROPERTIES, TEST EQUIPMENT, TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE