Abstract
One approach to obtaining more damage tolerant laminated composite structures can be achieved by improving the properties of the composite material itself. This approach needs full knowledge of resistance to typical damage modes which appear to affect the use of structural composite laminates. In this work, a representative model for delamination growth in composite laminates is presented, and a simple energy release rate model for delamination growth is established. Emphasis is placed on discussing the characteristics of delamination resistance in T300/648 and T300/634 graphite/epoxy composite laminates. The results indicate that the laminated composite structures with more laminate resistance to delamination growth can be obtained by improving the ductility of matrix resin.
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