SOME PROPERTIES OF NOL RINGS OF CARBON-BASE FIBERS AND EPOXY RESIN,
Abstract
The recent improvement in the strength and the modulus of carbon-base fibers indicates that such fibers will soon compete with glass in composite structures where light weight is important. Carbon fibers, made by the pyrolysis of rayon yarn, were evaluated in the NOL ring form. A composite tensile strength of 5600 kg/cm2 + (80,000 psi), a+sq. cm compressive strength of over 7000 kg/cm2+(100,000 psi), and shear strengths of over 350 kg/cm2+ (5000 psi) were measured. A compressive modulus of over =280,000 kg/sq.cm (4,000,000 psi) was also determined. Several ring fabrication difficulties were encountered, with poor wetting and some fuzzing due to broken filaments causing the most trouble. The rings were somewhat porous, but in general the rings were satisfactory. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 04, 1964
- Accession Number
- AD0454635
Entities
People
- Stanley P. Prosen
Organizations
- Naval Ordnance Laboratory