caa a22 4500 463224574 CHVBK 20180405153222.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10853-006-1027-2 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1027-2 Deformation and fracture behaviour of flax fibre reinforced thermosetting polymer matrix composites [Elektronische Daten] [Mark Hughes, James Carpenter, Callum Hill] The mechanical properties of unidirectional flax fibre reinforced unsaturated polyester resin composites were studied with particular emphasis on their tensile deformation behaviour. These materials displayed characteristic non-linear behaviour when loaded parallel to the axis of the fibre, with a distinct knee preceding a drop in stiffness. Further deformation resulted in strain hardening behaviour. Load cycling and acoustic emissions analysis were used to investigate the nature of the knee and it was found that this corresponded with yielding behaviour in the composite. A well-defined yield point could be identified, which in composites of around 60% fibre volume fraction, occurred at a strain of some 0.12% and a tensile stress of 32MPa. Varying the interfacial properties, through chemical modification of the fibre prior to lamination, was found to have a marked effect upon the onset of yielding and the yield point itself, as well as the deformation and fracture behaviour of the laminate. It is considered that this behaviour is intimately linked to the straining behaviour of the fibre as well as the fibre-matrix interaction and hypotheses to explain the observed behaviour are presented. Springer Science+Business Media, LLC, 2007 Hughes Mark BioComposites Centre, University of Wales, Bangor, UK aut Carpenter James BioComposites Centre, University of Wales, Bangor, UK aut Hill Callum School of the Environment and Natural Resources, University of Wales, Bangor, UK aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2499-2511 0022-2461 42:7<2499 2007 42 10853 https://doi.org/10.1007/s10853-006-1027-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1027-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hughes Mark BioComposites Centre, University of Wales, Bangor, UK aut NATIONALLICENCE 700 1- Carpenter James BioComposites Centre, University of Wales, Bangor, UK aut NATIONALLICENCE 700 1- Hill Callum School of the Environment and Natural Resources, University of Wales, Bangor, UK aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2499-2511 0022-2461 42:7<2499 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer