Abstract
A new model describing the notched strength of carbon fibre composites has been developed. In the third paper of a four-part series, subcritical damage growth in notched cross-ply carbon fibre reinforced epoxy specimens has been modelled with the aid of linear elastic fracture mechanics. A function relating split length to applied stress for (90/0) s laminates has been derived. The predictions of split growth were used in conjunction with the failure model presented in Part II of this series to predict notched strength from first principles. The dependence of notched strength on notch size has been modelled without the need for empirical parameters.
Published Version
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