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Prediction of elastic properties of fiber-reinforced unidirectional composites
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DOI：10.1016/S0955-7997(98)00027-7.png)
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Abstract
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The purpose of this work is the evaluation of the global stiffness of a unidirectional fiber-reinforced composite. The effect of crenulations and debonding is also studied. The interfacial stresses for crenulated and debonded fibres are calculated. It is found that the crenulations of fibers affect the stress distribution more than the global stiffness. The boundary element method is employed in all calculations. In the use of the boundary element method for a multiple zone problem, certain difficulties arise at the corners that are present at the fiber-matrix interfaces. A 'shear modification' scheme is developed for resolving such difficulties. (C) 1998 Elsevier Science Ltd. All rights reserved.
Keywords:
boundary element method
unidirectional fiber-reinforced composites
elastic properties
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