Methods of Measurement of the Relative Performance of Various Classes of Resins in Carbon Fiber Composites,
Abstract
The improvement of adhesion between carbon fiber and resins other than the epoxies by fiber surface treatment has been investigated. The resin systems of most interest are the phenolics, polyesters and polyimides. The test samples took the form of unidirectional composites manufactured by the leaky mould technique. The mechanical properties which are likely to provide most information on the effectiveness of the carbon fiber -resin bond are interlaminar shear strength, flexural and tensile strengths transverse to the fiber direction. Voids are an inherent feature of composites and since they act as stress raisers they can seriously limit the transverse mechanical properties. Various methods have been proposed to measure the quantity and distribution of voids and one of the most promising for use with carbon fiber/resin composites is based on stereo radiography using sulphur as a staining medium. This method has been investigated. (Author, modified-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1972
- Accession Number
- AD0762323
Entities
People
- J. C. Joiner
- L. J. Artis