An Advanced Shear-Lag Model Applicable to Discontinuous Fiber Composites

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Abstract
This paper develops an analysis for predicting the stress distribution in unidirectional discontinuous fiber composites. Although the basic ap proach is based upon the shear-lag analysis, the load transfer at fiber ends is taken into consideration. This consideration becomes important if the bonding between the fiber and matrix at the fiber end is perfect such as the cases often observed in metal matrix composites, as well as during the early stage of loading of polymeric matrix composites. The present analysis in cludes the ordinary shear-lag analysis as a special case.