Use of micro-tomography for validation of method to identify interfacial shear strength from tensile tests of short regenerated cellulose fibre composites
Hajlane, A., Miettinen, A., Madsen, B., Beauson, J., & Joffe, R. (2016). Use of micro-tomography for validation of method to identify interfacial shear strength from tensile tests of short regenerated cellulose fibre composites. In B. Madsen, A. Biel, Y. Kusano, H. Lilholt, L. Mikkelsen, L. Mishnaevsky, & B. Sørensen (Eds.), 37th Risø International Symposium on Materials Science (Article 012021). Institute of Physics Publishing Ltd.. IOP Conference Series : Materials Science and Engineering, 139. https://doi.org/10.1088/1757-899X/139/1/012021
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2016Copyright
© the Authors, 2016. Published under licence by IOP Publishing Ltd. This is an open access article distributed under the terms of a Creative Commons License.
The interfacial shear strength of short regenerated cellulose fibre/polylactide
composites was characterized by means of an industry-friendly adhesion test method. The
interfacial shear strength was back-calculated from the experimental tensile stress-strain curves
of composites by using a micro-mechanical model. The parameters characterizing the microstructure
of the composites, e.g. fibre length and orientation distributions, used as input in the
model were obtained by micro-tomography. The investigation was carried out on composites
with untreated and surface treated fibres with various fibre weight contents (5wt%, 10wt%, and
15wt% for untreated fibres, and 15wt% for treated fibres). The properties of fibres were
measured by an automated single fibre tensile test method. Based on these results, the
efficiency of the fibre treatment to improve fibre/matrix adhesion is evaluated, and the
applicability of the method to measure the interfacial shear strength is discussed. The
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Except where otherwise noted, this item's license is described as © the Authors, 2016. Published under licence by IOP Publishing Ltd. This is an open access article distributed under the terms of a Creative Commons License.