Formation of non-uniform fibre distributions in winding-pultrusion process and its effect on axial compressive properties of hollow GFRP profiles
Article
Article Title | Formation of non-uniform fibre distributions in winding-pultrusion process and its effect on axial compressive properties of hollow GFRP profiles |
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ERA Journal ID | 4882 |
Article Category | Article |
Authors | Qi, Songming, Alajarmeh, Omar, Shelley, Tristan, Schubel, Peter, Rendle-Short, Kendric and Zeng, Xuesen |
Journal Title | Composites Part A: Applied Science and Manufacturing |
Journal Citation | 173 |
Article Number | 107659 |
Number of Pages | 13 |
Year | 2023 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-835X |
1878-5840 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesa.2023.107659 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1359835X2300235X |
Abstract | This study investigated the formation and impact of Non-Uniform Fibre Distribution (NUFD) in pultruded Glass Fibre Reinforced Polymer (GFRP) composite profiles. These profiles, manufactured through a pull-winding process, are low-cost, high-volume structure materials. NUFD, a result of defects such as fibre waviness, wrinkling and voids, lead to differences in fibre volume fraction through the profile cross-section. Image analysis was used to measure the NUFD, and its effect on the axial compressive behaviour was evaluated at both material and structural levels. Results show that material compressive strength has a maximum strength reduction of 11% observed in the tested material coupon. In long-column structural applications governed by local buckling failure mode, the finite element analysis highlights that the corner NUFD can lead up to a 9% reduction in axial compressive peak load due to the rotation stiffness variation when corner fibre content decreases by 30%. |
Keywords | B. Defects ; B. Fibre deformation ; B. Mechanical properties ; D. Optical microscopy ; E. Pultrusion |
Related Output | |
Is part of | Effect of fibre distribution on structural behaviour of pultruded composite profiles |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | This article is part of a UniSQ Thesis by publication. See Related Output. |
Byline Affiliations | Centre for Future Materials |
Wagners Composite Fibre Technologies, Australia |
https://research.usq.edu.au/item/z1x2y/formation-of-non-uniform-fibre-distributions-in-winding-pultrusion-process-and-its-effect-on-axial-compressive-properties-of-hollow-gfrp-profiles
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