Effect of strain rate on the mechanical properties of composites with a weak fibre/matrix interface |
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Authors: | Y Termonia |
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Affiliation: | (1) Central Research and Development, Experimental Station, E.I. du Pont de Nemours, Inc., 19898 Wilmington DE, USA |
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Abstract: | Modelling studies have indicated a strong effect of the rate of deformation on the tensile strength of composites with a weak fibre/matrix interface. At high rates, the mode of deformation changes from a fibre pull-out to a fibre breaking mechanism typical of good adhesion composites. As a result, the mechanical properties become independent of those of the fibre/matrix interface. The model predictions are of great importance because they allow a straightforward identification of composites with poor fibre-matrix adhesion. |
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