Preliminary Investigation of Filament-Wound Glass-Reinforced Plastics and Liners for Cryogenic Pressure Vessels.
Abstract
A preliminary investigation of the strength characteristics of filament-wound glass-reinforced plastic (FRF) materials was made at temperatures of 75 deg, -320 deg, and -423 deg F. The material was tested in the form of bidirectionally wound sheet material, unidirectionally wound Naval Ordinance Laboratory (NOL) type rings and bidirectionally wound cylinders. Also, a preliminary investigation of metallic and polymeric liners was made in FRP pressure vessels under cyclic strain of 2 1/2 percent at a temperature of -320 deg F. The ultimate strength of FRP materials at -320 deg and -423 deg F was significantly higher than that at room temperature. For example, strength increases ranging from 21 to 81 percent were noted for the cryogenic temperatures depending on the material and type of test specimen. The materials were found to be relatively insensitive to sharp notches. A preliminary investigation of liner materials and liner configurations indicated that aluminum foil liners having some type of provision for mechanical elastic extensibility show promise for use as permeability barriers in FRP pressure vessels subjected to cyclic pressurization resulting in strains of 2 1/2 percent. In general, plain metallic liners or plain polymeric liners were found to be unsatisfactory. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1965
- Accession Number
- ADA306147
Entities
People
- Hadley T. Richards
- Morgan P. Hanson
- Robert O. Hickel
Organizations
- Glenn Research Center