Delamination Fracture Study of Graphite/Epoxy Composite Materials
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Date
1984
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Abstract
Critical energy release rates have been determined for two composite systems. The effect of resin thickness on fracture toughness in brittle fiber - ductile resin systems has been investigated. Material resin content has been varied through manufacturing for one composite. Two different specimen geometries and the use of epoxy resin with and without fibers has produced a variation in resin thickness in the other material. Electron microscopy has allowed for detailed examination of the fracture surfaces. Composites with a thicker region of ductile resin exhibit higher energy release rates than do those with less resin in the crack growth region.
Description
Program year: 1983-1984
Digitized from print original stored in HDR
Digitized from print original stored in HDR
Keywords
energy release rates, resin thickness, fracture toughness, crack growth region