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Reclaiming in-process composite waste for use in energy absorbing sandwich structures

Abstract

The growing demand for carbon fibre reinforced polymers (CFRP) has led to a significant increase in the amount of carbon fibre waste generated. This paper investigates the reuse of in-process waste as a non-woven complex for use in energy absorbing applications. Composite sandwich coupons were manufactured and tested in quasi-static edgewise compression. Three laminate configurations were used, a continuous fibre unidirectional layup, a fully reclaimed layup and a hybrid of the two. The unidirectional material showed the most efficient energy absorbing performance, with the fully reclaimed showing the lowest. The hybrid laminate displayed traits of both the material types, whilst also showing a more consistent performance across each of the coupons tested

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