Poulton, M;
Sebastian, W;
(2021)
Taxonomy of fibre mat misalignments in pultruded GFRP bridge decks.
Composites Part A: Applied Science and Manufacturing
, 142
, Article 106239. 10.1016/j.compositesa.2020.106239.
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Abstract
This paper presents a taxonomy of the fibre mat misalignments found in a multi-celled pultruded GFRP deck, based on high-resolution images of the polished cross sections. A dual approach to misalignment taxonomy is presented, one based on misalignment morphology, the other grounded in the manufacturing provenance of the misalignments. Each misalignment is characterised using, alternately, a Gaussian function, the angle to its steepest tangent, its length and its height. Some scatter in the type and severity of the misalignments was found within the web-flange junctions. The deck's top flange was found to be thicker in regions containing a double-backed or flipped mat layer, which was probably due to displacement of the internal mandrels during pultrusion. Analysis shows that as wrinkle amplitude increases, there is a switch from mat failure at constant load to interlaminar failure at rapidly decreasing load. Finally, recommendations are made for minimising fibre misalignments due to manufacturing.
| Type: | Article |
|---|---|
| Title: | Taxonomy of fibre mat misalignments in pultruded GFRP bridge decks |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.compositesa.2020.106239 |
| Publisher version: | https://doi.org/10.1016/j.compositesa.2020.106239 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Glass fibres, Fabrics/textiles, DefectsPultrusion |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10136186 |
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