Formation of non-uniform fibre distribution and its effect on the flexural performance of pultruded GFRP box beams
Article
Qi, Songming, Alajarmeh, Omar, Alhawamdeh, Mohammad, Shelley, Tristan, Schubel, Peter, Rendle-Short, Kendric and Zeng, Xuesen. 2024. "Formation of non-uniform fibre distribution and its effect on the flexural performance of pultruded GFRP box beams." Composite Structures. 327. https://doi.org/10.1016/j.compstruct.2023.117695
Article Title | Formation of non-uniform fibre distribution and its effect on the flexural performance of pultruded GFRP box beams |
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Article Category | Article |
Authors | Qi, Songming, Alajarmeh, Omar, Alhawamdeh, Mohammad, Shelley, Tristan, Schubel, Peter, Rendle-Short, Kendric and Zeng, Xuesen |
Journal Title | Composite Structures |
Journal Citation | 327 |
Article Number | 117695 |
Number of Pages | 14 |
Year | 2024 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compstruct.2023.117695 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0263822323010413 |
Abstract | This study investigates the effect of non-uniform fibre distribution (NUFD) as a defect in the pull-winding manufacturing process on the mechanical properties of pultruded glass fibre-reinforced polymer (GFRP) box section profiles. These profiles exhibit balanced mechanical properties but are susceptible to NUFD during production, negatively affecting local buckling capacity. Experimental and numerical analyses were conducted on pultruded GFRP profiles manufactured under three winding tension configurations, resulting in a 5% variance in load capacity during bending. Results show that corner NUFD influences local buckling capacity more than flange NUFD. Specifically, corner NUFD decreases load capacity by up to 20%, while flange NUFD increases it by up to 3%. Conversely, the effect of NUFD location is insignificant to the failure determined by the material strength without buckling instability. Moreover, a linear relationship between the rotational restraint coefficient and corner fibre volume fraction provides insight into the impact of material imperfections on load capacity. |
Keywords | Defects; Flexural stability ; Local buckling ; Pultrusion ; Fibre-reinforced polymer |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Byline Affiliations | Centre for Future Materials |
Tafila Technical University, Jordan | |
Wagners Composite Fibre Technologies, Australia |
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https://research.usq.edu.au/item/z5v90/formation-of-non-uniform-fibre-distribution-and-its-effect-on-the-flexural-performance-of-pultruded-gfrp-box-beams
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