Glass fibre strength distribution determined by common experimental methods

In situ observations of microscale damage evolution in unidirectional natural fibre composites

“…PP was chosen as matrix material since it has a relatively low density of 0.91 g/cm 3 compared with the higher density of 1.55 g/cm 3 for flax fibres, in order to have the best possible contrast in the XTM experiments. 5 …”

“…The failure mechanism of a fibre is related to its brittleness. The failure of brittle fibres like glass fibres is to a large extent controlled by defects in the fibres, and may best be described by Weibull statistics [5]. It is known that the strength and failure mechanism of natural fibres are also largely affected by the presence of defects [3,6].…”

The effect of mechanical defects on the strength distribution of elementary flax fibres

“…[10]). Thus the higher strength variability is likely to be caused by factors intrinsic to flax fibre.…”

The influence of non-linear elasticity on the determination of Weibull parameters using the fibre bundle tensile test

“…Some of these are based on the classical fibre bundle theory [9 -12] while others use more refined treatments, featuring single fibre strength distributions other than the twoparameter Weibull distribution [13,14], non-constant filament lengths [14] or fibre -fibre interactions [17,18]. These methods have been used to describe the behaviour of numerous fibre materials, including glass [16,19], carbon [9,12,14], Kevlar [17], and ceramic [15]. Despite these improvements, an important point has-to the best knowledge of the authors-never been addressed to date, namely the often non-linear elastic behaviour of high-strength brittle fibres, which becomes noticeable at strains lower than their average fracture strain [20 -22].…”