As a way of enhancing the mechanical properties of photopolymer-based parts produced by layered manufacturing (LM) techniques, the use of short glass-fibre reinforcements has been recently explored in the literature. This paper proposes a novel methodology that utilizes a modified rule-of-mixtures model for the prediction of the mechanical properties of such layered composites. The prediction process employs empirical data on (i) the fibre-matrix interface, (ii) the fibres' geometrical arrangement within the specimens (i.e. fibre-orientation distribution), and (iii) the fibre-length distribution. The effects of the fibre-orientation and fibre-length distributions are accounted for in the prediction model by the fibre-length-correction and orientation-efficiency factors. Comparison of extensive experimental results and model-based predictions of mechanical properties of layered composites demonstrated the effectiveness of the proposed estimation methodology.
Rapid Prototyping Journal – Emerald Publishing
Published: Jun 1, 2000
Keywords: Fibre; Composites; Mechanical properties
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