Observation of the structure of a composite polypropylene/flax and damage mechanisms under stress

Modelling of progressive fibre/matrix debonding in short-fibre reinforced composites up to failure

“…Indeed, short fibres are generally organised following complex distributions of length and orientation. Fibres orientation may also be totally different depending on location in manufacturing parts, especially in the case of injection moulded composites (Arif et al, 2014;Bernasconi et al, 2008;Bourmaud et al, 2013). The modelling and prediction of SFRC behaviour is therefore challenging.…”

“…Thus, debonding is proved to initiate preferentially at fibre http://dx.doi.org/10.1016/j.ijsolstr.2015.03.034 0020-7683/Ó 2015 Elsevier Ltd. All rights reserved. tips if fibres are subjected to local tensile loads, because tensile stress concentration at fibre tips fosters the nucleation and coalescence of microvoids (Bourmaud et al, 2013;Sato et al, 1991). Debonding is therefore likely to initiate at fibre tips if fibres are oriented with a low angle with respect to the direction of macroscopic tensile loading (i.e.…”

Homogeneity investigation of oil flax processing products by quality indexes

“…Foreign scientists conducted experimental researches regarding the properties of flax fibres of different selection [8] and to fibres distribution by length [9]. The various parameters of quality of both straw and processed products of oil flax were analysed in details [10].…”

“…To test the hypothesis about belonging of two independent samples to one of the distribution laws, let us use the Kolmogorov-Smirnov criterion [9,18].…”

Scatter in tensile properties of flax fibre bundles: influence of determination and calculation of the cross-sectional area

“…Although numerous studies (e.g., [5][6][7][8][9][10]) have shown the high potential of these materials based (partly) on renewable resources; their use in structural parts is still limited. One of the main barriers mentioned by the composites industry is a lack of constancy and the huge variation of the properties of natural fibre and fibre bundles (see Fig.…”